Finding the Fourth Proportional to 115,803.27, 159,772.08 and 64,807.89

Step by Step Solution

1. Step 1: Write the proportion equation
   115,803.27 : 159,772.08 = 64,807.89 : x
2. Step 2: Convert to fraction form
   115,803.27/159,772.08 = 64,807.89/x
3. Step 3: Cross multiply
   115,803.27x = 159,772.08 × 64,807.89
4. Step 4: Simplify right side
   115,803.27x = 10,354,491,385.71
5. Step 5: Solve for x
   x = 10,354,491,385.71/115,803.27
6. Step 6: Final answer
   x = 89,414.50