Finding the Fourth Proportional to 126,293.85, 174,348.59 and 78,562.71

Step by Step Solution

1. Step 1: Write the proportion equation
   126,293.85 : 174,348.59 = 78,562.71 : x
2. Step 2: Convert to fraction form
   126,293.85/174,348.59 = 78,562.71/x
3. Step 3: Cross multiply
   126,293.85x = 174,348.59 × 78,562.71
4. Step 4: Simplify right side
   126,293.85x = 13,697,297,322.27
5. Step 5: Solve for x
   x = 13,697,297,322.27/126,293.85
6. Step 6: Final answer
   x = 108,455.77