Finding the Fourth Proportional to 301,010.78, 415,413.52 and 166,874.78

Step by Step Solution

1. Step 1: Write the proportion equation
   301,010.78 : 415,413.52 = 166,874.78 : x
2. Step 2: Convert to fraction form
   301,010.78/415,413.52 = 166,874.78/x
3. Step 3: Cross multiply
   301,010.78x = 415,413.52 × 166,874.78
4. Step 4: Simplify right side
   301,010.78x = 69,322,039,759.03
5. Step 5: Solve for x
   x = 69,322,039,759.03/301,010.78
6. Step 6: Final answer
   x = 230,297.53