Finding the Fourth Proportional to 10,387,013.28, 14,324,758.72 and 8,650,418.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387,013.28 : 14,324,758.72 = 8,650,418.56 : x
2. Step 2: Convert to fraction form
   10,387,013.28/14,324,758.72 = 8,650,418.56/x
3. Step 3: Cross multiply
   10,387,013.28x = 14,324,758.72 × 8,650,418.56
4. Step 4: Simplify right side
   10,387,013.28x = 123,915,158,699,009.86
5. Step 5: Solve for x
   x = 123,915,158,699,009.86/10,387,013.28
6. Step 6: Final answer
   x = 11,929,816.14