Finding the Fourth Proportional to 16,299.50, 22,496.81 and 9,928.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,299.50 : 22,496.81 = 9,928.18 : x
2. Step 2: Convert to fraction form
   16,299.50/22,496.81 = 9,928.18/x
3. Step 3: Cross multiply
   16,299.50x = 22,496.81 × 9,928.18
4. Step 4: Simplify right side
   16,299.50x = 223,352,357.59
5. Step 5: Solve for x
   x = 223,352,357.59/16,299.50
6. Step 6: Final answer
   x = 13,703.02