Finding the Fourth Proportional to 156,789.32, 216,400.77 and 93,114.81

Step by Step Solution

1. Step 1: Write the proportion equation
   156,789.32 : 216,400.77 = 93,114.81 : x
2. Step 2: Convert to fraction form
   156,789.32/216,400.77 = 93,114.81/x
3. Step 3: Cross multiply
   156,789.32x = 216,400.77 × 93,114.81
4. Step 4: Simplify right side
   156,789.32x = 20,150,116,582.40
5. Step 5: Solve for x
   x = 20,150,116,582.40/156,789.32
6. Step 6: Final answer
   x = 128,517.15