Finding the Fourth Proportional to 8,659.62, 12,968.17 and 5,530.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,659.62 : 12,968.17 = 5,530.39 : x
2. Step 2: Convert to fraction form
   8,659.62/12,968.17 = 5,530.39/x
3. Step 3: Cross multiply
   8,659.62x = 12,968.17 × 5,530.39
4. Step 4: Simplify right side
   8,659.62x = 71,718,991.44
5. Step 5: Solve for x
   x = 71,718,991.44/8,659.62
6. Step 6: Final answer
   x = 8,282.00