Finding the Fourth Proportional to 10,564,978.62, 15,824,691.01 and 7,134,400.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,564,978.62 : 15,824,691.01 = 7,134,400.87 : x
2. Step 2: Convert to fraction form
   10,564,978.62/15,824,691.01 = 7,134,400.87/x
3. Step 3: Cross multiply
   10,564,978.62x = 15,824,691.01 × 7,134,400.87
4. Step 4: Simplify right side
   10,564,978.62x = 112,899,689,309,225.17
5. Step 5: Solve for x
   x = 112,899,689,309,225.17/10,564,978.62
6. Step 6: Final answer
   x = 10,686,220.33