Finding the Fourth Proportional to 156,600.68, 216,105.94 and 88,616.42

Step by Step Solution

1. Step 1: Write the proportion equation
   156,600.68 : 216,105.94 = 88,616.42 : x
2. Step 2: Convert to fraction form
   156,600.68/216,105.94 = 88,616.42/x
3. Step 3: Cross multiply
   156,600.68x = 216,105.94 × 88,616.42
4. Step 4: Simplify right side
   156,600.68x = 19,150,534,743.53
5. Step 5: Solve for x
   x = 19,150,534,743.53/156,600.68
6. Step 6: Final answer
   x = 122,288.96