Finding the Fourth Proportional to 126,472.68, 174,549.60 and 72,756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   126,472.68 : 174,549.60 = 72,756.72 : x
2. Step 2: Convert to fraction form
   126,472.68/174,549.60 = 72,756.72/x
3. Step 3: Cross multiply
   126,472.68x = 174,549.60 × 72,756.72
4. Step 4: Simplify right side
   126,472.68x = 12,699,656,373.31
5. Step 5: Solve for x
   x = 12,699,656,373.31/126,472.68
6. Step 6: Final answer
   x = 100,414.23