Finding the Fourth Proportional to 131,648.27, 181,674.06 and 71,218.77

Step by Step Solution

1. Step 1: Write the proportion equation
   131,648.27 : 181,674.06 = 71,218.77 : x
2. Step 2: Convert to fraction form
   131,648.27/181,674.06 = 71,218.77/x
3. Step 3: Cross multiply
   131,648.27x = 181,674.06 × 71,218.77
4. Step 4: Simplify right side
   131,648.27x = 12,938,603,272.15
5. Step 5: Solve for x
   x = 12,938,603,272.15/131,648.27
6. Step 6: Final answer
   x = 98,281.61