Finding the Fourth Proportional to 12,579.97, 17,360.17 and 7,275.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,579.97 : 17,360.17 = 7,275.28 : x
2. Step 2: Convert to fraction form
   12,579.97/17,360.17 = 7,275.28/x
3. Step 3: Cross multiply
   12,579.97x = 17,360.17 × 7,275.28
4. Step 4: Simplify right side
   12,579.97x = 126,300,097.60
5. Step 5: Solve for x
   x = 126,300,097.60/12,579.97
6. Step 6: Final answer
   x = 10,039.78