Finding the Fourth Proportional to 131,665.54, 181,698.18 and 71,236

Step by Step Solution

1. Step 1: Write the proportion equation
   131,665.54 : 181,698.18 = 71,236 : x
2. Step 2: Convert to fraction form
   131,665.54/181,698.18 = 71,236/x
3. Step 3: Cross multiply
   131,665.54x = 181,698.18 × 71,236
4. Step 4: Simplify right side
   131,665.54x = 12,943,451,550.48
5. Step 5: Solve for x
   x = 12,943,451,550.48/131,665.54
6. Step 6: Final answer
   x = 98,305.54