Finding the Fourth Proportional to 16,313.68, 22,514.46 and 9,144.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,313.68 : 22,514.46 = 9,144.81 : x
2. Step 2: Convert to fraction form
   16,313.68/22,514.46 = 9,144.81/x
3. Step 3: Cross multiply
   16,313.68x = 22,514.46 × 9,144.81
4. Step 4: Simplify right side
   16,313.68x = 205,890,456.32
5. Step 5: Solve for x
   x = 205,890,456.32/16,313.68
6. Step 6: Final answer
   x = 12,620.73