Finding the Fourth Proportional to 16,091.28, 22,198.86 and 9,716.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,091.28 : 22,198.86 = 9,716.04 : x
2. Step 2: Convert to fraction form
   16,091.28/22,198.86 = 9,716.04/x
3. Step 3: Cross multiply
   16,091.28x = 22,198.86 × 9,716.04
4. Step 4: Simplify right side
   16,091.28x = 215,685,011.71
5. Step 5: Solve for x
   x = 215,685,011.71/16,091.28
6. Step 6: Final answer
   x = 13,403.84