Finding the Fourth Proportional to 22,793.88, 31,456.78 and 13,365.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,793.88 : 31,456.78 = 13,365.48 : x
2. Step 2: Convert to fraction form
   22,793.88/31,456.78 = 13,365.48/x
3. Step 3: Cross multiply
   22,793.88x = 31,456.78 × 13,365.48
4. Step 4: Simplify right side
   22,793.88x = 420,434,963.95
5. Step 5: Solve for x
   x = 420,434,963.95/22,793.88
6. Step 6: Final answer
   x = 18,445.08