Finding the Fourth Proportional to 8,288.64, 12,431.16 and 2,443.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,288.64 : 12,431.16 = 2,443.92 : x
2. Step 2: Convert to fraction form
   8,288.64/12,431.16 = 2,443.92/x
3. Step 3: Cross multiply
   8,288.64x = 12,431.16 × 2,443.92
4. Step 4: Simplify right side
   8,288.64x = 30,380,760.55
5. Step 5: Solve for x
   x = 30,380,760.55/8,288.64
6. Step 6: Final answer
   x = 3,665.35