Finding the Fourth Proportional to 16,315.25, 22,514.24 and 9,144.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,315.25 : 22,514.24 = 9,144.29 : x
2. Step 2: Convert to fraction form
   16,315.25/22,514.24 = 9,144.29/x
3. Step 3: Cross multiply
   16,315.25x = 22,514.24 × 9,144.29
4. Step 4: Simplify right side
   16,315.25x = 205,876,818.84
5. Step 5: Solve for x
   x = 205,876,818.84/16,315.25
6. Step 6: Final answer
   x = 12,618.68