Finding the Fourth Proportional to 156,552.12, 215,990.76 and 88,562.52

Step by Step Solution

1. Step 1: Write the proportion equation
   156,552.12 : 215,990.76 = 88,562.52 : x
2. Step 2: Convert to fraction form
   156,552.12/215,990.76 = 88,562.52/x
3. Step 3: Cross multiply
   156,552.12x = 215,990.76 × 88,562.52
4. Step 4: Simplify right side
   156,552.12x = 19,128,686,002.32
5. Step 5: Solve for x
   x = 19,128,686,002.32/156,552.12
6. Step 6: Final answer
   x = 122,187.33