Finding the Fourth Proportional to 12,682.17, 17,502.75 and 7,017.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.17 : 17,502.75 = 7,017.39 : x
2. Step 2: Convert to fraction form
   12,682.17/17,502.75 = 7,017.39/x
3. Step 3: Cross multiply
   12,682.17x = 17,502.75 × 7,017.39
4. Step 4: Simplify right side
   12,682.17x = 122,823,622.82
5. Step 5: Solve for x
   x = 122,823,622.82/12,682.17
6. Step 6: Final answer
   x = 9,684.75