Finding the Fourth Proportional to 8,780.18, 13,171.58 and 3,233.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.18 : 13,171.58 = 3,233.10 : x
2. Step 2: Convert to fraction form
   8,780.18/13,171.58 = 3,233.10/x
3. Step 3: Cross multiply
   8,780.18x = 13,171.58 × 3,233.10
4. Step 4: Simplify right side
   8,780.18x = 42,585,043.38
5. Step 5: Solve for x
   x = 42,585,043.38/8,780.18
6. Step 6: Final answer
   x = 4,850.13