Finding the Fourth Proportional to 3,782.91, 5,631.91 and 3,764.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,782.91 : 5,631.91 = 3,764.69 : x
2. Step 2: Convert to fraction form
   3,782.91/5,631.91 = 3,764.69/x
3. Step 3: Cross multiply
   3,782.91x = 5,631.91 × 3,764.69
4. Step 4: Simplify right side
   3,782.91x = 21,202,395.26
5. Step 5: Solve for x
   x = 21,202,395.26/3,782.91
6. Step 6: Final answer
   x = 5,604.78