Finding the Fourth Proportional to 118,813.76, 163,960.56 and 65,096.16

Step by Step Solution

1. Step 1: Write the proportion equation
   118,813.76 : 163,960.56 = 65,096.16 : x
2. Step 2: Convert to fraction form
   118,813.76/163,960.56 = 65,096.16/x
3. Step 3: Cross multiply
   118,813.76x = 163,960.56 × 65,096.16
4. Step 4: Simplify right side
   118,813.76x = 10,673,202,847.45
5. Step 5: Solve for x
   x = 10,673,202,847.45/118,813.76
6. Step 6: Final answer
   x = 89,831.37