Finding the Fourth Proportional to 131,846.27, 181,947.77 and 71,416.78

Step by Step Solution

1. Step 1: Write the proportion equation
   131,846.27 : 181,947.77 = 71,416.78 : x
2. Step 2: Convert to fraction form
   131,846.27/181,947.77 = 71,416.78/x
3. Step 3: Cross multiply
   131,846.27x = 181,947.77 × 71,416.78
4. Step 4: Simplify right side
   131,846.27x = 12,994,123,585.25
5. Step 5: Solve for x
   x = 12,994,123,585.25/131,846.27
6. Step 6: Final answer
   x = 98,555.11