Finding the Fourth Proportional to 12,674.68, 17,489.82 and 7,086.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,674.68 : 17,489.82 = 7,086.04 : x
2. Step 2: Convert to fraction form
   12,674.68/17,489.82 = 7,086.04/x
3. Step 3: Cross multiply
   12,674.68x = 17,489.82 × 7,086.04
4. Step 4: Simplify right side
   12,674.68x = 123,933,564.11
5. Step 5: Solve for x
   x = 123,933,564.11/12,674.68
6. Step 6: Final answer
   x = 9,778.04