Finding the Fourth Proportional to 5,789.91, 7,990.22 and 3,550.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,789.91 : 7,990.22 = 3,550.49 : x
2. Step 2: Convert to fraction form
   5,789.91/7,990.22 = 3,550.49/x
3. Step 3: Cross multiply
   5,789.91x = 7,990.22 × 3,550.49
4. Step 4: Simplify right side
   5,789.91x = 28,369,196.21
5. Step 5: Solve for x
   x = 28,369,196.21/5,789.91
6. Step 6: Final answer
   x = 4,899.76