what is the size of a six year annual ordinary annuity which in addition to investments of $ 50,000, $ 10,000 and 80,000 at the end of years 3, 7 and 8 respectively grows to a sum of money large enough to pay $ 10,000,000 and $ 500,000 at the end of years 10 and 12 respectively and in addition of $ 300,000 into perpetuity beginning from the end year 13. Take r= 13.69