Finding the Fourth Proportional to 51,551,919.52, 71,139,736.56 and 28,345,665.76

Step by Step Solution

1. Step 1: Write the proportion equation
   51,551,919.52 : 71,139,736.56 = 28,345,665.76 : x
2. Step 2: Convert to fraction form
   51,551,919.52/71,139,736.56 = 28,345,665.76/x
3. Step 3: Cross multiply
   51,551,919.52x = 71,139,736.56 × 28,345,665.76
4. Step 4: Simplify right side
   51,551,919.52x = 2,016,503,194,784,212.25
5. Step 5: Solve for x
   x = 2,016,503,194,784,212.25/51,551,919.52
6. Step 6: Final answer
   x = 39,115,967.23