Finding the Fourth Proportional to 22,267.62, 30,729.78 and 12,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,267.62 : 30,729.78 = 12,196.50 : x
2. Step 2: Convert to fraction form
   22,267.62/30,729.78 = 12,196.50/x
3. Step 3: Cross multiply
   22,267.62x = 30,729.78 × 12,196.50
4. Step 4: Simplify right side
   22,267.62x = 374,795,761.77
5. Step 5: Solve for x
   x = 374,795,761.77/22,267.62
6. Step 6: Final answer
   x = 16,831.42