Tesla and SpaceX boss Elon Musk is now the world's fourth-richest person, with a net worth of $84.8 billion, according to the Bloomberg Billionaires Index. The only people ahead of him are Amazon's Jeff Bezos, Microsoft co-founder Bill Gates and Facebook's Mark Zuckerberg.
As of Tuesday, Bezos is worth $188 billion (slightly less than the $189.3 billion he hit last month), Gates has $121 billion to his name, and Zuckerberg is sitting on $99 billion.
The Top 10 is heavy on tech billionaires -- former Microsoft CEO Steve Ballmer has $75.7 billion, while Google co-founders Larry Page and Sergey Brin are worth $72.5 billion and $70.3 billion respectively.
Even thoughhas caused the US economy to shrink, tech companies posted at the end of July. and both saw their profit double, and managed to beat estimates despite a decline.