Finding the Fourth Proportional to 17,889.17, 24,687.86 and 9,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,889.17 : 24,687.86 = 9,931.50 : x
2. Step 2: Convert to fraction form
   17,889.17/24,687.86 = 9,931.50/x
3. Step 3: Cross multiply
   17,889.17x = 24,687.86 × 9,931.50
4. Step 4: Simplify right side
   17,889.17x = 245,187,431.93
5. Step 5: Solve for x
   x = 245,187,431.93/17,889.17
6. Step 6: Final answer
   x = 13,705.92