Finding the Fourth Proportional to 111,413.72, 153,751.18 and 63,666.96

Step by Step Solution

1. Step 1: Write the proportion equation
   111,413.72 : 153,751.18 = 63,666.96 : x
2. Step 2: Convert to fraction form
   111,413.72/153,751.18 = 63,666.96/x
3. Step 3: Cross multiply
   111,413.72x = 153,751.18 × 63,666.96
4. Step 4: Simplify right side
   111,413.72x = 9,788,870,227.01
5. Step 5: Solve for x
   x = 9,788,870,227.01/111,413.72
6. Step 6: Final answer
   x = 87,860.55