Finding the Fourth Proportional to 48,016.82, 72,019.83 and 18,413.88

Step by Step Solution

1. Step 1: Write the proportion equation
   48,016.82 : 72,019.83 = 18,413.88 : x
2. Step 2: Convert to fraction form
   48,016.82/72,019.83 = 18,413.88/x
3. Step 3: Cross multiply
   48,016.82x = 72,019.83 × 18,413.88
4. Step 4: Simplify right side
   48,016.82x = 1,326,164,711.33
5. Step 5: Solve for x
   x = 1,326,164,711.33/48,016.82
6. Step 6: Final answer
   x = 27,618.76