Finding the Fourth Proportional to 88,665.83, 122,358.79 and 56,834.71

Step by Step Solution

1. Step 1: Write the proportion equation
   88,665.83 : 122,358.79 = 56,834.71 : x
2. Step 2: Convert to fraction form
   88,665.83/122,358.79 = 56,834.71/x
3. Step 3: Cross multiply
   88,665.83x = 122,358.79 × 56,834.71
4. Step 4: Simplify right side
   88,665.83x = 6,954,226,345.60
5. Step 5: Solve for x
   x = 6,954,226,345.60/88,665.83
6. Step 6: Final answer
   x = 78,431.86