Finding the Fourth Proportional to 8,057.99, 12,078.67 and 3,380.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,057.99 : 12,078.67 = 3,380.72 : x
2. Step 2: Convert to fraction form
   8,057.99/12,078.67 = 3,380.72/x
3. Step 3: Cross multiply
   8,057.99x = 12,078.67 × 3,380.72
4. Step 4: Simplify right side
   8,057.99x = 40,834,583.72
5. Step 5: Solve for x
   x = 40,834,583.72/8,057.99
6. Step 6: Final answer
   x = 5,067.59