Finding the Fourth Proportional to 131,679.72, 181,716.71 and 71,249.04

Step by Step Solution

1. Step 1: Write the proportion equation
   131,679.72 : 181,716.71 = 71,249.04 : x
2. Step 2: Convert to fraction form
   131,679.72/181,716.71 = 71,249.04/x
3. Step 3: Cross multiply
   131,679.72x = 181,716.71 × 71,249.04
4. Step 4: Simplify right side
   131,679.72x = 12,947,140,783.21
5. Step 5: Solve for x
   x = 12,947,140,783.21/131,679.72
6. Step 6: Final answer
   x = 98,322.97