Finding the Fourth Proportional to 11,940.50, 16,478.22 and 7,222.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,940.50 : 16,478.22 = 7,222.04 : x
2. Step 2: Convert to fraction form
   11,940.50/16,478.22 = 7,222.04/x
3. Step 3: Cross multiply
   11,940.50x = 16,478.22 × 7,222.04
4. Step 4: Simplify right side
   11,940.50x = 119,006,363.97
5. Step 5: Solve for x
   x = 119,006,363.97/11,940.50
6. Step 6: Final answer
   x = 9,966.61