Finding the Fourth Proportional to 5,591.25, 7,712.71 and 3,491.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,591.25 : 7,712.71 = 3,491.73 : x
2. Step 2: Convert to fraction form
   5,591.25/7,712.71 = 3,491.73/x
3. Step 3: Cross multiply
   5,591.25x = 7,712.71 × 3,491.73
4. Step 4: Simplify right side
   5,591.25x = 26,930,700.89
5. Step 5: Solve for x
   x = 26,930,700.89/5,591.25
6. Step 6: Final answer
   x = 4,816.58