Finding the Fourth Proportional to 8,578.83, 12,866.18 and 2,338.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,578.83 : 12,866.18 = 2,338.88 : x
2. Step 2: Convert to fraction form
   8,578.83/12,866.18 = 2,338.88/x
3. Step 3: Cross multiply
   8,578.83x = 12,866.18 × 2,338.88
4. Step 4: Simplify right side
   8,578.83x = 30,092,375.05
5. Step 5: Solve for x
   x = 30,092,375.05/8,578.83
6. Step 6: Final answer
   x = 3,507.75