Finding the Fourth Proportional to 5,559.17, 7,626.42 and 5,413.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,559.17 : 7,626.42 = 5,413.91 : x
2. Step 2: Convert to fraction form
   5,559.17/7,626.42 = 5,413.91/x
3. Step 3: Cross multiply
   5,559.17x = 7,626.42 × 5,413.91
4. Step 4: Simplify right side
   5,559.17x = 41,288,713.37
5. Step 5: Solve for x
   x = 41,288,713.37/5,559.17
6. Step 6: Final answer
   x = 7,427.14