Finding the Fourth Proportional to 16,013.84, 22,099.50 and 8,940.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,013.84 : 22,099.50 = 8,940.78 : x
2. Step 2: Convert to fraction form
   16,013.84/22,099.50 = 8,940.78/x
3. Step 3: Cross multiply
   16,013.84x = 22,099.50 × 8,940.78
4. Step 4: Simplify right side
   16,013.84x = 197,586,767.61
5. Step 5: Solve for x
   x = 197,586,767.61/16,013.84
6. Step 6: Final answer
   x = 12,338.50