Finding the Fourth Proportional to 126,826.74, 175,025.67 and 72,387.75

Step by Step Solution

1. Step 1: Write the proportion equation
   126,826.74 : 175,025.67 = 72,387.75 : x
2. Step 2: Convert to fraction form
   126,826.74/175,025.67 = 72,387.75/x
3. Step 3: Cross multiply
   126,826.74x = 175,025.67 × 72,387.75
4. Step 4: Simplify right side
   126,826.74x = 12,669,714,443.54
5. Step 5: Solve for x
   x = 12,669,714,443.54/126,826.74
6. Step 6: Final answer
   x = 99,897.82