Finding the Fourth Proportional to 113,709,565.28, 156,926,375.31 and 64,131,849.92

Step by Step Solution

1. Step 1: Write the proportion equation
   113,709,565.28 : 156,926,375.31 = 64,131,849.92 : x
2. Step 2: Convert to fraction form
   113,709,565.28/156,926,375.31 = 64,131,849.92/x
3. Step 3: Cross multiply
   113,709,565.28x = 156,926,375.31 × 64,131,849.92
4. Step 4: Simplify right side
   113,709,565.28x = 10,063,978,749,085,882
5. Step 5: Solve for x
   x = 10,063,978,749,085,882/113,709,565.28
6. Step 6: Final answer
   x = 88,505,999.69