Finding the Fourth Proportional to 5,776.72, 7,976.61 and 3,655.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,776.72 : 7,976.61 = 3,655.69 : x
2. Step 2: Convert to fraction form
   5,776.72/7,976.61 = 3,655.69/x
3. Step 3: Cross multiply
   5,776.72x = 7,976.61 × 3,655.69
4. Step 4: Simplify right side
   5,776.72x = 29,159,993.47
5. Step 5: Solve for x
   x = 29,159,993.47/5,776.72
6. Step 6: Final answer
   x = 5,047.85