After $4,868,913.57 How do I go to the answer of months?

Your client has been given a trust fund valued at \$1.11 million. He cannot access the money until he turns 65 years old, which is in 30 years. At the time, he can withdraw $24,500 per month. If the trust fund is invested at a 4.5 percent rate, how many months will it last your client once he starts to writhdraws tha monav