Finding the Fourth Proportional to 16,223, 22,390.98 and 9,149.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,223 : 22,390.98 = 9,149.54 : x
2. Step 2: Convert to fraction form
   16,223/22,390.98 = 9,149.54/x
3. Step 3: Cross multiply
   16,223x = 22,390.98 × 9,149.54
4. Step 4: Simplify right side
   16,223x = 204,867,167.15
5. Step 5: Solve for x
   x = 204,867,167.15/16,223
6. Step 6: Final answer
   x = 12,628.19