Finding the Fourth Proportional to 16,294.80, 22,485.49 and 9,580.71

Step by Step Solution

1. Step 1: Write the proportion equation
   16,294.80 : 22,485.49 = 9,580.71 : x
2. Step 2: Convert to fraction form
   16,294.80/22,485.49 = 9,580.71/x
3. Step 3: Cross multiply
   16,294.80x = 22,485.49 × 9,580.71
4. Step 4: Simplify right side
   16,294.80x = 215,426,934.95
5. Step 5: Solve for x
   x = 215,426,934.95/16,294.80
6. Step 6: Final answer
   x = 13,220.59