Finding the Fourth Proportional to 80,980.16, 111,751.31 and 45,169.25

Step by Step Solution

1. Step 1: Write the proportion equation
   80,980.16 : 111,751.31 = 45,169.25 : x
2. Step 2: Convert to fraction form
   80,980.16/111,751.31 = 45,169.25/x
3. Step 3: Cross multiply
   80,980.16x = 111,751.31 × 45,169.25
4. Step 4: Simplify right side
   80,980.16x = 5,047,722,413.38
5. Step 5: Solve for x
   x = 5,047,722,413.38/80,980.16
6. Step 6: Final answer
   x = 62,332.83