Finding the Fourth Proportional to 3,836.72, 5,743.85 and 2,915.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,836.72 : 5,743.85 = 2,915.96 : x
2. Step 2: Convert to fraction form
   3,836.72/5,743.85 = 2,915.96/x
3. Step 3: Cross multiply
   3,836.72x = 5,743.85 × 2,915.96
4. Step 4: Simplify right side
   3,836.72x = 16,748,793.55
5. Step 5: Solve for x
   x = 16,748,793.55/3,836.72
6. Step 6: Final answer
   x = 4,365.39