4 Richest person in world.

As of my last update in January 2022, Elon Musk, the CEO of Tesla and SpaceX, held the title of the richest person in the world. His wealth fluctuates due to the stock prices of his companies, investments, and various ventures. Musk's net worth is tied to his substantial ownership stakes in Tesla and SpaceX, both of which have seen significant growth in recent years. However, the title of the richest person can change due to various factors such as market fluctuations, company performance, and personal investments, so it's advisable to check for the latest updates from reliable sources.