Finding the Fourth Proportional to 156,456.84, 215,922.72 and 132,123.72

Step by Step Solution

1. Step 1: Write the proportion equation
   156,456.84 : 215,922.72 = 132,123.72 : x
2. Step 2: Convert to fraction form
   156,456.84/215,922.72 = 132,123.72/x
3. Step 3: Cross multiply
   156,456.84x = 215,922.72 × 132,123.72
4. Step 4: Simplify right side
   156,456.84x = 28,528,512,998.92
5. Step 5: Solve for x
   x = 28,528,512,998.92/156,456.84
6. Step 6: Final answer
   x = 182,341.10