Finding the Fourth Proportional to 12,087.24, 16,681.59 and 8,116.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,087.24 : 16,681.59 = 8,116.62 : x
2. Step 2: Convert to fraction form
   12,087.24/16,681.59 = 8,116.62/x
3. Step 3: Cross multiply
   12,087.24x = 16,681.59 × 8,116.62
4. Step 4: Simplify right side
   12,087.24x = 135,398,127.03
5. Step 5: Solve for x
   x = 135,398,127.03/12,087.24
6. Step 6: Final answer
   x = 11,201.74