Finding the Fourth Proportional to 116,096.81, 160,220.60 and 65,112.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,096.81 : 160,220.60 = 65,112.56 : x
2. Step 2: Convert to fraction form
   116,096.81/160,220.60 = 65,112.56/x
3. Step 3: Cross multiply
   116,096.81x = 160,220.60 × 65,112.56
4. Step 4: Simplify right side
   116,096.81x = 10,432,372,304.07
5. Step 5: Solve for x
   x = 10,432,372,304.07/116,096.81
6. Step 6: Final answer
   x = 89,859.25