Finding the Fourth Proportional to 22,280.38, 30,748.74 and 12,723.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,280.38 : 30,748.74 = 12,723.18 : x
2. Step 2: Convert to fraction form
   22,280.38/30,748.74 = 12,723.18/x
3. Step 3: Cross multiply
   22,280.38x = 30,748.74 × 12,723.18
4. Step 4: Simplify right side
   22,280.38x = 391,221,753.79
5. Step 5: Solve for x
   x = 391,221,753.79/22,280.38
6. Step 6: Final answer
   x = 17,559.03