Finding the Fourth Proportional to 12,413.72, 18,624.42 and 3,981.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,413.72 : 18,624.42 = 3,981.48 : x
2. Step 2: Convert to fraction form
   12,413.72/18,624.42 = 3,981.48/x
3. Step 3: Cross multiply
   12,413.72x = 18,624.42 × 3,981.48
4. Step 4: Simplify right side
   12,413.72x = 74,152,755.74
5. Step 5: Solve for x
   x = 74,152,755.74/12,413.72
6. Step 6: Final answer
   x = 5,973.45