Finding the Fourth Proportional to 17,889.28, 24,686.04 and 9,931.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,889.28 : 24,686.04 = 9,931.12 : x
2. Step 2: Convert to fraction form
   17,889.28/24,686.04 = 9,931.12/x
3. Step 3: Cross multiply
   17,889.28x = 24,686.04 × 9,931.12
4. Step 4: Simplify right side
   17,889.28x = 245,160,025.56
5. Step 5: Solve for x
   x = 245,160,025.56/17,889.28
6. Step 6: Final answer
   x = 13,704.30