Finding the Fourth Proportional to 156,640.24, 216,112.06 and 88,650.46

Step by Step Solution

1. Step 1: Write the proportion equation
   156,640.24 : 216,112.06 = 88,650.46 : x
2. Step 2: Convert to fraction form
   156,640.24/216,112.06 = 88,650.46/x
3. Step 3: Cross multiply
   156,640.24x = 216,112.06 × 88,650.46
4. Step 4: Simplify right side
   156,640.24x = 19,158,433,530.55
5. Step 5: Solve for x
   x = 19,158,433,530.55/156,640.24
6. Step 6: Final answer
   x = 122,308.50