Finding the Fourth Proportional to 105,452.89, 158,147.94 and 57,413.81

Step by Step Solution

1. Step 1: Write the proportion equation
   105,452.89 : 158,147.94 = 57,413.81 : x
2. Step 2: Convert to fraction form
   105,452.89/158,147.94 = 57,413.81/x
3. Step 3: Cross multiply
   105,452.89x = 158,147.94 × 57,413.81
4. Step 4: Simplify right side
   105,452.89x = 9,079,876,389.72
5. Step 5: Solve for x
   x = 9,079,876,389.72/105,452.89
6. Step 6: Final answer
   x = 86,103.63