Finding the Fourth Proportional to 16,290,552.72, 22,479,651.72 and 9,415,480.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,290,552.72 : 22,479,651.72 = 9,415,480.08 : x
2. Step 2: Convert to fraction form
   16,290,552.72/22,479,651.72 = 9,415,480.08/x
3. Step 3: Cross multiply
   16,290,552.72x = 22,479,651.72 × 9,415,480.08
4. Step 4: Simplify right side
   16,290,552.72x = 211,656,712,974,997.72
5. Step 5: Solve for x
   x = 211,656,712,974,997.72/16,290,552.72
6. Step 6: Final answer
   x = 12,992,604.77