Finding the Fourth Proportional to 12,196.54, 18,278.41 and 8,894.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.54 : 18,278.41 = 8,894.17 : x
2. Step 2: Convert to fraction form
   12,196.54/18,278.41 = 8,894.17/x
3. Step 3: Cross multiply
   12,196.54x = 18,278.41 × 8,894.17
4. Step 4: Simplify right side
   12,196.54x = 162,571,285.87
5. Step 5: Solve for x
   x = 162,571,285.87/12,196.54
6. Step 6: Final answer
   x = 13,329.30