Finding the Fourth Proportional to 17,672.76, 24,388.42 and 9,715.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,672.76 : 24,388.42 = 9,715.12 : x
2. Step 2: Convert to fraction form
   17,672.76/24,388.42 = 9,715.12/x
3. Step 3: Cross multiply
   17,672.76x = 24,388.42 × 9,715.12
4. Step 4: Simplify right side
   17,672.76x = 236,936,426.91
5. Step 5: Solve for x
   x = 236,936,426.91/17,672.76
6. Step 6: Final answer
   x = 13,406.87