Mukesh Ambani has surged past Europe's wealthiest man, making him the world's fourth-richest person. Reliance Industries Ltd.'s chairman is now worth $80.6 billion, after amassing $22 billion this year, according to the Bloomberg Billionaires Index. Ambani's wealth pile is npw bigger than French billionaire Bernard Arnault's fortune. India's richest person has already surpassed some of the biggest tycoons in recent weeks, including Elon Musk and Alphabet Inc. co-founders Sergey Brin and Larry Page, as well as Warren Buffett. Reliance shares have more than doubled since March as its digital unit Jio got billions in investments from companies including Facebook and Google.