Finding the Fourth Proportional to 8,007.89, 12,012.72 and 3,328.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,007.89 : 12,012.72 = 3,328.46 : x
2. Step 2: Convert to fraction form
   8,007.89/12,012.72 = 3,328.46/x
3. Step 3: Cross multiply
   8,007.89x = 12,012.72 × 3,328.46
4. Step 4: Simplify right side
   8,007.89x = 39,983,781.31
5. Step 5: Solve for x
   x = 39,983,781.31/8,007.89
6. Step 6: Final answer
   x = 4,993.05