Finding the Fourth Proportional to 12,272.78, 18,395.37 and 5,249.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,272.78 : 18,395.37 = 5,249.27 : x
2. Step 2: Convert to fraction form
   12,272.78/18,395.37 = 5,249.27/x
3. Step 3: Cross multiply
   12,272.78x = 18,395.37 × 5,249.27
4. Step 4: Simplify right side
   12,272.78x = 96,562,309.87
5. Step 5: Solve for x
   x = 96,562,309.87/12,272.78
6. Step 6: Final answer
   x = 7,868.00