Finding the Fourth Proportional to 32,086.72, 48,130.12 and 8,713.20

Step by Step Solution

1. Step 1: Write the proportion equation
   32,086.72 : 48,130.12 = 8,713.20 : x
2. Step 2: Convert to fraction form
   32,086.72/48,130.12 = 8,713.20/x
3. Step 3: Cross multiply
   32,086.72x = 48,130.12 × 8,713.20
4. Step 4: Simplify right side
   32,086.72x = 419,367,361.58
5. Step 5: Solve for x
   x = 419,367,361.58/32,086.72
6. Step 6: Final answer
   x = 13,069.81