Finding the Fourth Proportional to 156,962.74, 235,128.48 and 72,604.48

Step by Step Solution

1. Step 1: Write the proportion equation
   156,962.74 : 235,128.48 = 72,604.48 : x
2. Step 2: Convert to fraction form
   156,962.74/235,128.48 = 72,604.48/x
3. Step 3: Cross multiply
   156,962.74x = 235,128.48 × 72,604.48
4. Step 4: Simplify right side
   156,962.74x = 17,071,381,023.59
5. Step 5: Solve for x
   x = 17,071,381,023.59/156,962.74
6. Step 6: Final answer
   x = 108,760.72