Brian Chesky cofounded Airbnb in 2008 to help pay rent on his San Francisco apartment, and now he's worth $4.2 billion. Here's what the CEO's life is like, from partying at Burning Man to taking Airbnb 'staycations.'

• Brian Chesky is the CEO and cofounder of Airbnb.
• He's worth an estimated $4.2 billion, according to Forbes.
• The 37-year-old billionaire has rented out his own San Francisco apartment on Airbnb, does weekly yoga with his girlfriend, and has attended the famously wild Burning Man arts event in the Nevada desert.
• Chesky has pledged to give away at least half of his fortune to charity.
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Brian Chesky, the 37-year-old cofounder and CEO of Airbnb, is worth an estimated $4.2 billion, according to Forbes.

Despite his wealth, the tech billionaire lives a relatively modest lifestyle. In 2016, Chesky (along with Airbnb's other two cofounders, Joe Gebbia and Nathan Blecharczyk, and Blecharczyk's wife) pledged to give at least half his fortune to charity over the course of his lifetime.

Chesky previously said in interviews that he has rented out his own San Francisco apartment on Airbnb, does weekly yoga with his girlfriend (who he met on Tinder), and has attended the famously wild Burning Man arts event in the Nevada desert.

Here's what Chesky's life is really like.