Finding the Fourth Proportional to 5,545.60, 7,655.52 and 3,974.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,545.60 : 7,655.52 = 3,974.56 : x
2. Step 2: Convert to fraction form
   5,545.60/7,655.52 = 3,974.56/x
3. Step 3: Cross multiply
   5,545.60x = 7,655.52 × 3,974.56
4. Step 4: Simplify right side
   5,545.60x = 30,427,323.57
5. Step 5: Solve for x
   x = 30,427,323.57/5,545.60
6. Step 6: Final answer
   x = 5,486.75