Finding the Fourth Proportional to 13,413.37, 20,119.82 and 4,648.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,413.37 : 20,119.82 = 4,648.16 : x
2. Step 2: Convert to fraction form
   13,413.37/20,119.82 = 4,648.16/x
3. Step 3: Cross multiply
   13,413.37x = 20,119.82 × 4,648.16
4. Step 4: Simplify right side
   13,413.37x = 93,520,018.69
5. Step 5: Solve for x
   x = 93,520,018.69/13,413.37
6. Step 6: Final answer
   x = 6,972.15