Finding the Fourth Proportional to 8,297.31, 12,438.50 and 3,028.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,297.31 : 12,438.50 = 3,028.65 : x
2. Step 2: Convert to fraction form
   8,297.31/12,438.50 = 3,028.65/x
3. Step 3: Cross multiply
   8,297.31x = 12,438.50 × 3,028.65
4. Step 4: Simplify right side
   8,297.31x = 37,671,847.88
5. Step 5: Solve for x
   x = 37,671,847.88/8,297.31
6. Step 6: Final answer
   x = 4,540.25