Finding the Fourth Proportional to 16,221.73, 22,384.62 and 9,149.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,221.73 : 22,384.62 = 9,149.89 : x
2. Step 2: Convert to fraction form
   16,221.73/22,384.62 = 9,149.89/x
3. Step 3: Cross multiply
   16,221.73x = 22,384.62 × 9,149.89
4. Step 4: Simplify right side
   16,221.73x = 204,816,810.69
5. Step 5: Solve for x
   x = 204,816,810.69/16,221.73
6. Step 6: Final answer
   x = 12,626.08