Finding the Fourth Proportional to 5,936.30, 8,187.54 and 3,836.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,936.30 : 8,187.54 = 3,836.78 : x
2. Step 2: Convert to fraction form
   5,936.30/8,187.54 = 3,836.78/x
3. Step 3: Cross multiply
   5,936.30x = 8,187.54 × 3,836.78
4. Step 4: Simplify right side
   5,936.30x = 31,413,789.72
5. Step 5: Solve for x
   x = 31,413,789.72/5,936.30
6. Step 6: Final answer
   x = 5,291.81