Finding the Fourth Proportional to 22,397.41, 30,906.71 and 12,837.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,397.41 : 30,906.71 = 12,837.18 : x
2. Step 2: Convert to fraction form
   22,397.41/30,906.71 = 12,837.18/x
3. Step 3: Cross multiply
   22,397.41x = 30,906.71 × 12,837.18
4. Step 4: Simplify right side
   22,397.41x = 396,755,171.54
5. Step 5: Solve for x
   x = 396,755,171.54/22,397.41
6. Step 6: Final answer
   x = 17,714.33