Finding the Fourth Proportional to 8,781.12, 13,172.76 and 3,233.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,781.12 : 13,172.76 = 3,233.52 : x
2. Step 2: Convert to fraction form
   8,781.12/13,172.76 = 3,233.52/x
3. Step 3: Cross multiply
   8,781.12x = 13,172.76 × 3,233.52
4. Step 4: Simplify right side
   8,781.12x = 42,594,382.92
5. Step 5: Solve for x
   x = 42,594,382.92/8,781.12
6. Step 6: Final answer
   x = 4,850.68