Finding the Fourth Proportional to 80,752.66, 111,413.57 and 45,821.57

Step by Step Solution

1. Step 1: Write the proportion equation
   80,752.66 : 111,413.57 = 45,821.57 : x
2. Step 2: Convert to fraction form
   80,752.66/111,413.57 = 45,821.57/x
3. Step 3: Cross multiply
   80,752.66x = 111,413.57 × 45,821.57
4. Step 4: Simplify right side
   80,752.66x = 5,105,143,910.53
5. Step 5: Solve for x
   x = 5,105,143,910.53/80,752.66
6. Step 6: Final answer
   x = 63,219.52