Finding the Fourth Proportional to 12,616.83, 17,411.37 and 7,309.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,616.83 : 17,411.37 = 7,309.71 : x
2. Step 2: Convert to fraction form
   12,616.83/17,411.37 = 7,309.71/x
3. Step 3: Cross multiply
   12,616.83x = 17,411.37 × 7,309.71
4. Step 4: Simplify right side
   12,616.83x = 127,272,065.40
5. Step 5: Solve for x
   x = 127,272,065.40/12,616.83
6. Step 6: Final answer
   x = 10,087.48