Finding the Fourth Proportional to 5,782.69, 7,981.60 and 3,771.11

Step by Step Solution

1. Step 1: Write the proportion equation
   5,782.69 : 7,981.60 = 3,771.11 : x
2. Step 2: Convert to fraction form
   5,782.69/7,981.60 = 3,771.11/x
3. Step 3: Cross multiply
   5,782.69x = 7,981.60 × 3,771.11
4. Step 4: Simplify right side
   5,782.69x = 30,099,491.58
5. Step 5: Solve for x
   x = 30,099,491.58/5,782.69
6. Step 6: Final answer
   x = 5,205.11