Finding the Fourth Proportional to 22,144.25, 30,560.28 and 12,713.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,144.25 : 30,560.28 = 12,713.42 : x
2. Step 2: Convert to fraction form
   22,144.25/30,560.28 = 12,713.42/x
3. Step 3: Cross multiply
   22,144.25x = 30,560.28 × 12,713.42
4. Step 4: Simplify right side
   22,144.25x = 388,525,674.96
5. Step 5: Solve for x
   x = 388,525,674.96/22,144.25
6. Step 6: Final answer
   x = 17,545.22