Finding the Fourth Proportional to 22,105.30, 33,167.69 and 12,617.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,105.30 : 33,167.69 = 12,617.22 : x
2. Step 2: Convert to fraction form
   22,105.30/33,167.69 = 12,617.22/x
3. Step 3: Cross multiply
   22,105.30x = 33,167.69 × 12,617.22
4. Step 4: Simplify right side
   22,105.30x = 418,484,041.62
5. Step 5: Solve for x
   x = 418,484,041.62/22,105.30
6. Step 6: Final answer
   x = 18,931.39