Finding the Fourth Proportional to 126,496.20, 174,560.04 and 72,789.52

Step by Step Solution

1. Step 1: Write the proportion equation
   126,496.20 : 174,560.04 = 72,789.52 : x
2. Step 2: Convert to fraction form
   126,496.20/174,560.04 = 72,789.52/x
3. Step 3: Cross multiply
   126,496.20x = 174,560.04 × 72,789.52
4. Step 4: Simplify right side
   126,496.20x = 12,706,141,522.78
5. Step 5: Solve for x
   x = 12,706,141,522.78/126,496.20
6. Step 6: Final answer
   x = 100,446.82