Finding the Fourth Proportional to 6,768.50, 9,340.89 and 3,784.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,768.50 : 9,340.89 = 3,784.15 : x
2. Step 2: Convert to fraction form
   6,768.50/9,340.89 = 3,784.15/x
3. Step 3: Cross multiply
   6,768.50x = 9,340.89 × 3,784.15
4. Step 4: Simplify right side
   6,768.50x = 35,347,326.38
5. Step 5: Solve for x
   x = 35,347,326.38/6,768.50
6. Step 6: Final answer
   x = 5,222.33