Finding the Fourth Proportional to 116,099.28, 160,218.81 and 65,123.33

Step by Step Solution

1. Step 1: Write the proportion equation
   116,099.28 : 160,218.81 = 65,123.33 : x
2. Step 2: Convert to fraction form
   116,099.28/160,218.81 = 65,123.33/x
3. Step 3: Cross multiply
   116,099.28x = 160,218.81 × 65,123.33
4. Step 4: Simplify right side
   116,099.28x = 10,433,981,634.74
5. Step 5: Solve for x
   x = 10,433,981,634.74/116,099.28
6. Step 6: Final answer
   x = 89,871.20