Finding the Fourth Proportional to 22,283.43, 30,744.54 and 12,723

Step by Step Solution

1. Step 1: Write the proportion equation
   22,283.43 : 30,744.54 = 12,723 : x
2. Step 2: Convert to fraction form
   22,283.43/30,744.54 = 12,723/x
3. Step 3: Cross multiply
   22,283.43x = 30,744.54 × 12,723
4. Step 4: Simplify right side
   22,283.43x = 391,162,782.42
5. Step 5: Solve for x
   x = 391,162,782.42/22,283.43
6. Step 6: Final answer
   x = 17,553.98