Finding the Fourth Proportional to 16,105.50, 22,225.59 and 9,391.41

Step by Step Solution

1. Step 1: Write the proportion equation
   16,105.50 : 22,225.59 = 9,391.41 : x
2. Step 2: Convert to fraction form
   16,105.50/22,225.59 = 9,391.41/x
3. Step 3: Cross multiply
   16,105.50x = 22,225.59 × 9,391.41
4. Step 4: Simplify right side
   16,105.50x = 208,729,628.18
5. Step 5: Solve for x
   x = 208,729,628.18/16,105.50
6. Step 6: Final answer
   x = 12,960.15