Finding the Fourth Proportional to 5,772.72, 7,961.04 and 3,782.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,772.72 : 7,961.04 = 3,782.55 : x
2. Step 2: Convert to fraction form
   5,772.72/7,961.04 = 3,782.55/x
3. Step 3: Cross multiply
   5,772.72x = 7,961.04 × 3,782.55
4. Step 4: Simplify right side
   5,772.72x = 30,113,031.85
5. Step 5: Solve for x
   x = 30,113,031.85/5,772.72
6. Step 6: Final answer
   x = 5,216.44