Finding the Fourth Proportional to 22,217.78, 30,660.59 and 12,146.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,217.78 : 30,660.59 = 12,146.34 : x
2. Step 2: Convert to fraction form
   22,217.78/30,660.59 = 12,146.34/x
3. Step 3: Cross multiply
   22,217.78x = 30,660.59 × 12,146.34
4. Step 4: Simplify right side
   22,217.78x = 372,413,950.74
5. Step 5: Solve for x
   x = 372,413,950.74/22,217.78
6. Step 6: Final answer
   x = 16,761.98