Finding the Fourth Proportional to 111,801.98, 154,285.98 and 63,413.12

Step by Step Solution

1. Step 1: Write the proportion equation
   111,801.98 : 154,285.98 = 63,413.12 : x
2. Step 2: Convert to fraction form
   111,801.98/154,285.98 = 63,413.12/x
3. Step 3: Cross multiply
   111,801.98x = 154,285.98 × 63,413.12
4. Step 4: Simplify right side
   111,801.98x = 9,783,755,364.06
5. Step 5: Solve for x
   x = 9,783,755,364.06/111,801.98
6. Step 6: Final answer
   x = 87,509.68