Dravid started his business with a capital of $20,000 in 2016 and he invested additional 20% of his initial capital in 2017, where his friend Sehwag joined him with a capital of $20,000. In 2018 both has invested an additional amount of 30% of their initial capital and their friend Ganguly joined them with a capital of $10,000. Find the share of Sehwag, if at the end of 2018, the total profit earned by them is $2,75,000?