Finding the Fourth Proportional to 156,818.17, 235,191.79 and 72,532.09

Step by Step Solution

1. Step 1: Write the proportion equation
   156,818.17 : 235,191.79 = 72,532.09 : x
2. Step 2: Convert to fraction form
   156,818.17/235,191.79 = 72,532.09/x
3. Step 3: Cross multiply
   156,818.17x = 235,191.79 × 72,532.09
4. Step 4: Simplify right side
   156,818.17x = 17,058,952,079.54
5. Step 5: Solve for x
   x = 17,058,952,079.54/156,818.17
6. Step 6: Final answer
   x = 108,781.73