Finding the Fourth Proportional to 15,413.37, 23,119.72 and 5,559.10

Step by Step Solution

1. Step 1: Write the proportion equation
   15,413.37 : 23,119.72 = 5,559.10 : x
2. Step 2: Convert to fraction form
   15,413.37/23,119.72 = 5,559.10/x
3. Step 3: Cross multiply
   15,413.37x = 23,119.72 × 5,559.10
4. Step 4: Simplify right side
   15,413.37x = 128,524,835.45
5. Step 5: Solve for x
   x = 128,524,835.45/15,413.37
6. Step 6: Final answer
   x = 8,338.53