Finding the Fourth Proportional to 22,196.41, 33,294.90 and 12,398.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.41 : 33,294.90 = 12,398.06 : x
2. Step 2: Convert to fraction form
   22,196.41/33,294.90 = 12,398.06/x
3. Step 3: Cross multiply
   22,196.41x = 33,294.90 × 12,398.06
4. Step 4: Simplify right side
   22,196.41x = 412,792,167.89
5. Step 5: Solve for x
   x = 412,792,167.89/22,196.41
6. Step 6: Final answer
   x = 18,597.25