Finding the Fourth Proportional to 12,514.74, 17,272.28 and 7,137.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,514.74 : 17,272.28 = 7,137.18 : x
2. Step 2: Convert to fraction form
   12,514.74/17,272.28 = 7,137.18/x
3. Step 3: Cross multiply
   12,514.74x = 17,272.28 × 7,137.18
4. Step 4: Simplify right side
   12,514.74x = 123,275,371.37
5. Step 5: Solve for x
   x = 123,275,371.37/12,514.74
6. Step 6: Final answer
   x = 9,850.41