You are planning for retirement. You have $$25,000$ in the account today and want to put in an

equal amount each month until retirement in $40$ years. At that point, you plan to take annual

payments of $$150,000$ for $30$ years. You also expect to receive an inheritance of $$50,00020$

years from today that you will add to this account.

You believe your investment will earn $8\%$ during your investment years with monthly

compounding and $5\%$ during your retirement years. How much are the monthly contributions

you must make to fund this plan? My solution says $$416\mathrm{.}12$ how do they get there?