Finding the Fourth Proportional to 22,218.72, 30,668.67 and 12,793.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,218.72 : 30,668.67 = 12,793.56 : x
2. Step 2: Convert to fraction form
   22,218.72/30,668.67 = 12,793.56/x
3. Step 3: Cross multiply
   22,218.72x = 30,668.67 × 12,793.56
4. Step 4: Simplify right side
   22,218.72x = 392,361,469.77
5. Step 5: Solve for x
   x = 392,361,469.77/22,218.72
6. Step 6: Final answer
   x = 17,659.05