What amount is required to purchase an annuity that pays $$5000$ at the end of each quarter for the first five years and then pays $$2500$ at the beginning of each month for the subsequent $15$ years. Assume that the annuity payments are based on a rate of return at return of $7\mathrm{.}6\%$ compounded quarterly. $($Do not round intermediate calculations and your final answer to decimal places.$)$