Finding the Fourth Proportional to 22,662.24, 33,920.57 and 12,105.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,662.24 : 33,920.57 = 12,105.86 : x
2. Step 2: Convert to fraction form
   22,662.24/33,920.57 = 12,105.86/x
3. Step 3: Cross multiply
   22,662.24x = 33,920.57 × 12,105.86
4. Step 4: Simplify right side
   22,662.24x = 410,637,441.41
5. Step 5: Solve for x
   x = 410,637,441.41/22,662.24
6. Step 6: Final answer
   x = 18,119.90