Finding the Fourth Proportional to 7,789.78, 10,745.89 and 5,268.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,789.78 : 10,745.89 = 5,268.52 : x
2. Step 2: Convert to fraction form
   7,789.78/10,745.89 = 5,268.52/x
3. Step 3: Cross multiply
   7,789.78x = 10,745.89 × 5,268.52
4. Step 4: Simplify right side
   7,789.78x = 56,614,936.38
5. Step 5: Solve for x
   x = 56,614,936.38/7,789.78
6. Step 6: Final answer
   x = 7,267.85