Finding the Fourth Proportional to 12,411.15, 17,127.07 and 7,105.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,411.15 : 17,127.07 = 7,105.51 : x
2. Step 2: Convert to fraction form
   12,411.15/17,127.07 = 7,105.51/x
3. Step 3: Cross multiply
   12,411.15x = 17,127.07 × 7,105.51
4. Step 4: Simplify right side
   12,411.15x = 121,696,567.16
5. Step 5: Solve for x
   x = 121,696,567.16/12,411.15
6. Step 6: Final answer
   x = 9,805.42