Finding the Fourth Proportional to 16,644.62, 22,969.76 and 9,091.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,644.62 : 22,969.76 = 9,091.18 : x
2. Step 2: Convert to fraction form
   16,644.62/22,969.76 = 9,091.18/x
3. Step 3: Cross multiply
   16,644.62x = 22,969.76 × 9,091.18
4. Step 4: Simplify right side
   16,644.62x = 208,822,222.72
5. Step 5: Solve for x
   x = 208,822,222.72/16,644.62
6. Step 6: Final answer
   x = 12,545.93