Finding the Fourth Proportional to 12,798.72, 17,673.12 and 8,026.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,798.72 : 17,673.12 = 8,026.65 : x
2. Step 2: Convert to fraction form
   12,798.72/17,673.12 = 8,026.65/x
3. Step 3: Cross multiply
   12,798.72x = 17,673.12 × 8,026.65
4. Step 4: Simplify right side
   12,798.72x = 141,855,948.65
5. Step 5: Solve for x
   x = 141,855,948.65/12,798.72
6. Step 6: Final answer
   x = 11,083.60