Finding the Fourth Proportional to 118,764.50, 163,894.59 and 65,049.35

Step by Step Solution

1. Step 1: Write the proportion equation
   118,764.50 : 163,894.59 = 65,049.35 : x
2. Step 2: Convert to fraction form
   118,764.50/163,894.59 = 65,049.35/x
3. Step 3: Cross multiply
   118,764.50x = 163,894.59 × 65,049.35
4. Step 4: Simplify right side
   118,764.50x = 10,661,235,728.54
5. Step 5: Solve for x
   x = 10,661,235,728.54/118,764.50
6. Step 6: Final answer
   x = 89,767.87