You are planning for your retirement and want to be able to take a luxury vacation each year for 15 years after retiring. You want to have a lump sum that you can invest at 6% per year in a special account when you retire (assume annual compounding for simplicity). You want the fund to be completely spent after taking 15 vacations. If you plan to spend $7,000 for each vacation, how much money needs to be in this fund when you retire