Question 4 ( 20 points). John plans to retire in 22 years with $8 million. He has already saved $500,000 in an investment account that generates a rate of return of 12% (APR), compounded quarterly. However, he needs to withdraw $150,000 from this account in 10 years to finance his son's college education. Please show with detailed steps that John's investment account balance will reach approximately $6.12 million in 22 years