Finding the Fourth Proportional to 22,216.10, 30,658.14 and 12,144.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,216.10 : 30,658.14 = 12,144.54 : x
2. Step 2: Convert to fraction form
   22,216.10/30,658.14 = 12,144.54/x
3. Step 3: Cross multiply
   22,216.10x = 30,658.14 × 12,144.54
4. Step 4: Simplify right side
   22,216.10x = 372,329,007.56
5. Step 5: Solve for x
   x = 372,329,007.56/22,216.10
6. Step 6: Final answer
   x = 16,759.42