Finding the Fourth Proportional to 156,506.01, 215,978.30 and 88,521.52

Step by Step Solution

1. Step 1: Write the proportion equation
   156,506.01 : 215,978.30 = 88,521.52 : x
2. Step 2: Convert to fraction form
   156,506.01/215,978.30 = 88,521.52/x
3. Step 3: Cross multiply
   156,506.01x = 215,978.30 × 88,521.52
4. Step 4: Simplify right side
   156,506.01x = 19,118,727,084.37
5. Step 5: Solve for x
   x = 19,118,727,084.37/156,506.01
6. Step 6: Final answer
   x = 122,159.70