Finding the Fourth Proportional to 8,287.38, 12,431.61 and 2,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,287.38 : 12,431.61 = 2,443.50 : x
2. Step 2: Convert to fraction form
   8,287.38/12,431.61 = 2,443.50/x
3. Step 3: Cross multiply
   8,287.38x = 12,431.61 × 2,443.50
4. Step 4: Simplify right side
   8,287.38x = 30,376,639.04
5. Step 5: Solve for x
   x = 30,376,639.04/8,287.38
6. Step 6: Final answer
   x = 3,665.41