Finding the Fourth Proportional to 12,617.25, 17,411.81 and 7,028.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,617.25 : 17,411.81 = 7,028.61 : x
2. Step 2: Convert to fraction form
   12,617.25/17,411.81 = 7,028.61/x
3. Step 3: Cross multiply
   12,617.25x = 17,411.81 × 7,028.61
4. Step 4: Simplify right side
   12,617.25x = 122,380,786.74
5. Step 5: Solve for x
   x = 122,380,786.74/12,617.25
6. Step 6: Final answer
   x = 9,699.48