Finding the Fourth Proportional to 22,358.54, 30,854.04 and 12,287

Step by Step Solution

1. Step 1: Write the proportion equation
   22,358.54 : 30,854.04 = 12,287 : x
2. Step 2: Convert to fraction form
   22,358.54/30,854.04 = 12,287/x
3. Step 3: Cross multiply
   22,358.54x = 30,854.04 × 12,287
4. Step 4: Simplify right side
   22,358.54x = 379,103,589.48
5. Step 5: Solve for x
   x = 379,103,589.48/22,358.54
6. Step 6: Final answer
   x = 16,955.65