Finding the Fourth Proportional to 126,659.52, 174,798.72 and 72,958.72

Step by Step Solution

1. Step 1: Write the proportion equation
   126,659.52 : 174,798.72 = 72,958.72 : x
2. Step 2: Convert to fraction form
   126,659.52/174,798.72 = 72,958.72/x
3. Step 3: Cross multiply
   126,659.52x = 174,798.72 × 72,958.72
4. Step 4: Simplify right side
   126,659.52x = 12,753,090,868.84
5. Step 5: Solve for x
   x = 12,753,090,868.84/126,659.52
6. Step 6: Final answer
   x = 100,687.98