Finding the Fourth Proportional to 22,174.78, 30,600.42 and 13,217.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,174.78 : 30,600.42 = 13,217.68 : x
2. Step 2: Convert to fraction form
   22,174.78/30,600.42 = 13,217.68/x
3. Step 3: Cross multiply
   22,174.78x = 30,600.42 × 13,217.68
4. Step 4: Simplify right side
   22,174.78x = 404,466,559.43
5. Step 5: Solve for x
   x = 404,466,559.43/22,174.78
6. Step 6: Final answer
   x = 18,239.94