Finding the Fourth Proportional to 118,773, 163,898.16 and 65,049.36

Step by Step Solution

1. Step 1: Write the proportion equation
   118,773 : 163,898.16 = 65,049.36 : x
2. Step 2: Convert to fraction form
   118,773/163,898.16 = 65,049.36/x
3. Step 3: Cross multiply
   118,773x = 163,898.16 × 65,049.36
4. Step 4: Simplify right side
   118,773x = 10,661,470,413.18
5. Step 5: Solve for x
   x = 10,661,470,413.18/118,773
6. Step 6: Final answer
   x = 89,763.42