Finding the Fourth Proportional to 12,413.82, 18,624.51 and 3,648.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,413.82 : 18,624.51 = 3,648.81 : x
2. Step 2: Convert to fraction form
   12,413.82/18,624.51 = 3,648.81/x
3. Step 3: Cross multiply
   12,413.82x = 18,624.51 × 3,648.81
4. Step 4: Simplify right side
   12,413.82x = 67,957,298.33
5. Step 5: Solve for x
   x = 67,957,298.33/12,413.82
6. Step 6: Final answer
   x = 5,474.33