Finding the Fourth Proportional to 8,426.72, 11,644.32 and 8,022.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,426.72 : 11,644.32 = 8,022.08 : x
2. Step 2: Convert to fraction form
   8,426.72/11,644.32 = 8,022.08/x
3. Step 3: Cross multiply
   8,426.72x = 11,644.32 × 8,022.08
4. Step 4: Simplify right side
   8,426.72x = 93,411,666.59
5. Step 5: Solve for x
   x = 93,411,666.59/8,426.72
6. Step 6: Final answer
   x = 11,085.18