Finding the Fourth Proportional to 8,169.81, 11,200.89 and 8,022.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,169.81 : 11,200.89 = 8,022.18 : x
2. Step 2: Convert to fraction form
   8,169.81/11,200.89 = 8,022.18/x
3. Step 3: Cross multiply
   8,169.81x = 11,200.89 × 8,022.18
4. Step 4: Simplify right side
   8,169.81x = 89,855,515.63
5. Step 5: Solve for x
   x = 89,855,515.63/8,169.81
6. Step 6: Final answer
   x = 10,998.48