Finding the Fourth Proportional to 126,341.85, 174,331.89 and 72,616.83

Step by Step Solution

1. Step 1: Write the proportion equation
   126,341.85 : 174,331.89 = 72,616.83 : x
2. Step 2: Convert to fraction form
   126,341.85/174,331.89 = 72,616.83/x
3. Step 3: Cross multiply
   126,341.85x = 174,331.89 × 72,616.83
4. Step 4: Simplify right side
   126,341.85x = 12,659,429,219.71
5. Step 5: Solve for x
   x = 12,659,429,219.71/126,341.85
6. Step 6: Final answer
   x = 100,199.81