Finding the Fourth Proportional to 8,067.78, 12,087.54 and 4,947.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,067.78 : 12,087.54 = 4,947.03 : x
2. Step 2: Convert to fraction form
   8,067.78/12,087.54 = 4,947.03/x
3. Step 3: Cross multiply
   8,067.78x = 12,087.54 × 4,947.03
4. Step 4: Simplify right side
   8,067.78x = 59,797,423.01
5. Step 5: Solve for x
   x = 59,797,423.01/8,067.78
6. Step 6: Final answer
   x = 7,411.88