Finding the Fourth Proportional to 3,876.69, 5,350.35 and 3,771.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,876.69 : 5,350.35 = 3,771.15 : x
2. Step 2: Convert to fraction form
   3,876.69/5,350.35 = 3,771.15/x
3. Step 3: Cross multiply
   3,876.69x = 5,350.35 × 3,771.15
4. Step 4: Simplify right side
   3,876.69x = 20,176,936.22
5. Step 5: Solve for x
   x = 20,176,936.22/3,876.69
6. Step 6: Final answer
   x = 5,204.68