Finding the Fourth Proportional to 22,341.48, 30,831.27 and 12,270.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,341.48 : 30,831.27 = 12,270.57 : x
2. Step 2: Convert to fraction form
   22,341.48/30,831.27 = 12,270.57/x
3. Step 3: Cross multiply
   22,341.48x = 30,831.27 × 12,270.57
4. Step 4: Simplify right side
   22,341.48x = 378,317,256.72
5. Step 5: Solve for x
   x = 378,317,256.72/22,341.48
6. Step 6: Final answer
   x = 16,933.40