Finding the Fourth Proportional to 16,294.72, 22,479.09 and 9,580.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,294.72 : 22,479.09 = 9,580.24 : x
2. Step 2: Convert to fraction form
   16,294.72/22,479.09 = 9,580.24/x
3. Step 3: Cross multiply
   16,294.72x = 22,479.09 × 9,580.24
4. Step 4: Simplify right side
   16,294.72x = 215,355,077.18
5. Step 5: Solve for x
   x = 215,355,077.18/16,294.72
6. Step 6: Final answer
   x = 13,216.25