Finding the Fourth Proportional to 126,269.62, 174,281.89 and 72,585.78

Step by Step Solution

1. Step 1: Write the proportion equation
   126,269.62 : 174,281.89 = 72,585.78 : x
2. Step 2: Convert to fraction form
   126,269.62/174,281.89 = 72,585.78/x
3. Step 3: Cross multiply
   126,269.62x = 174,281.89 × 72,585.78
4. Step 4: Simplify right side
   126,269.62x = 12,650,386,925.52
5. Step 5: Solve for x
   x = 12,650,386,925.52/126,269.62
6. Step 6: Final answer
   x = 100,185.52