Finding the Fourth Proportional to 8,049.78, 12,076.30 and 2,859.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,049.78 : 12,076.30 = 2,859.30 : x
2. Step 2: Convert to fraction form
   8,049.78/12,076.30 = 2,859.30/x
3. Step 3: Cross multiply
   8,049.78x = 12,076.30 × 2,859.30
4. Step 4: Simplify right side
   8,049.78x = 34,529,764.59
5. Step 5: Solve for x
   x = 34,529,764.59/8,049.78
6. Step 6: Final answer
   x = 4,289.53