I believe that the answer is found using Div. discount model.... please show all work... I will give a upvote!

You have a required rate of return of 9.75%. You are evaluating a stock that just paid a dividend per share of $4.68 of dividends, while retaining 35% of its earnings. The company currently has a growth rate of 12.8% per year. Understanding this is not sustainable, the company indicates it expects the ROE to drop by 7 percentage points next year and another 5 percentage points per year for the following 3 years before reaching a steady state level in year 5. Estimate the intrinsic value of the stock