Finding the Fourth Proportional to 12,008.68, 18,006.06 and 5,760.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,008.68 : 18,006.06 = 5,760.18 : x
2. Step 2: Convert to fraction form
   12,008.68/18,006.06 = 5,760.18/x
3. Step 3: Cross multiply
   12,008.68x = 18,006.06 × 5,760.18
4. Step 4: Simplify right side
   12,008.68x = 103,718,146.69
5. Step 5: Solve for x
   x = 103,718,146.69/12,008.68
6. Step 6: Final answer
   x = 8,636.93