Finding the Fourth Proportional to 118,776.72, 163,911.89 and 65,063.66

Step by Step Solution

1. Step 1: Write the proportion equation
   118,776.72 : 163,911.89 = 65,063.66 : x
2. Step 2: Convert to fraction form
   118,776.72/163,911.89 = 65,063.66/x
3. Step 3: Cross multiply
   118,776.72x = 163,911.89 × 65,063.66
4. Step 4: Simplify right side
   118,776.72x = 10,664,707,480.92
5. Step 5: Solve for x
   x = 10,664,707,480.92/118,776.72
6. Step 6: Final answer
   x = 89,787.86