Finding the Fourth Proportional to 17,621.72, 24,318.12 and 9,663.87

Step by Step Solution

1. Step 1: Write the proportion equation
   17,621.72 : 24,318.12 = 9,663.87 : x
2. Step 2: Convert to fraction form
   17,621.72/24,318.12 = 9,663.87/x
3. Step 3: Cross multiply
   17,621.72x = 24,318.12 × 9,663.87
4. Step 4: Simplify right side
   17,621.72x = 235,007,150.32
5. Step 5: Solve for x
   x = 235,007,150.32/17,621.72
6. Step 6: Final answer
   x = 13,336.22