Microsoft Corporation (NASDAQ:MSFT) chairman, co-founder, and former CEO Bill Gates is now the richest man in the world again, according to Bloomberg. Gates was previously dethroned by Mexican telecommunications mogul Carlos Slim back in 2007. Gates still owns 436 million shares in Microsoft and the stock price of the company is now at a five-year high, up 27% this year alone. This increased Gates’ wealth on paper. Gates is now worth around $72.1 billion, which is over half a bill dollars ahead of Carlos Slim.