Finding the Fourth Proportional to 12,691.74, 17,514.38 and 7,026.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,691.74 : 17,514.38 = 7,026.37 : x
2. Step 2: Convert to fraction form
   12,691.74/17,514.38 = 7,026.37/x
3. Step 3: Cross multiply
   12,691.74x = 17,514.38 × 7,026.37
4. Step 4: Simplify right side
   12,691.74x = 123,062,487.98
5. Step 5: Solve for x
   x = 123,062,487.98/12,691.74
6. Step 6: Final answer
   x = 9,696.27