Finding the Fourth Proportional to 17,688.72, 24,404.16 and 10,967.40

Step by Step Solution

1. Step 1: Write the proportion equation
   17,688.72 : 24,404.16 = 10,967.40 : x
2. Step 2: Convert to fraction form
   17,688.72/24,404.16 = 10,967.40/x
3. Step 3: Cross multiply
   17,688.72x = 24,404.16 × 10,967.40
4. Step 4: Simplify right side
   17,688.72x = 267,650,184.38
5. Step 5: Solve for x
   x = 267,650,184.38/17,688.72
6. Step 6: Final answer
   x = 15,131.12