You have inherited a rich Aunt who lived in South Africa for the past 30 years. however, your has put some terms for a collection of the inheritance. These terms are the following.

a) for the first 10 years you will collect a constant amount of $1200 at the end of every month.

b) Therefore, you will collect a constant amount of $3000 at the end of each month forever.

The current interest rate in the market is 6%.

Question. Find how much your inheritance is worth in today's value.