Finding the Fourth Proportional to 5,227.61, 7,836.55 and 3,847.97

Step by Step Solution

1. Step 1: Write the proportion equation
   5,227.61 : 7,836.55 = 3,847.97 : x
2. Step 2: Convert to fraction form
   5,227.61/7,836.55 = 3,847.97/x
3. Step 3: Cross multiply
   5,227.61x = 7,836.55 × 3,847.97
4. Step 4: Simplify right side
   5,227.61x = 30,154,819.27
5. Step 5: Solve for x
   x = 30,154,819.27/5,227.61
6. Step 6: Final answer
   x = 5,768.38