Finding the Fourth Proportional to 17,687.72, 24,409.70 and 9,730.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,687.72 : 24,409.70 = 9,730.56 : x
2. Step 2: Convert to fraction form
   17,687.72/24,409.70 = 9,730.56/x
3. Step 3: Cross multiply
   17,687.72x = 24,409.70 × 9,730.56
4. Step 4: Simplify right side
   17,687.72x = 237,520,050.43
5. Step 5: Solve for x
   x = 237,520,050.43/17,687.72
6. Step 6: Final answer
   x = 13,428.53