Finding the Fourth Proportional to 22,216.50, 30,658.70 and 12,144.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,216.50 : 30,658.70 = 12,144.94 : x
2. Step 2: Convert to fraction form
   22,216.50/30,658.70 = 12,144.94/x
3. Step 3: Cross multiply
   22,216.50x = 30,658.70 × 12,144.94
4. Step 4: Simplify right side
   22,216.50x = 372,348,071.98
5. Step 5: Solve for x
   x = 372,348,071.98/22,216.50
6. Step 6: Final answer
   x = 16,759.98