Finding the Fourth Proportional to 116,928.80, 161,377.52 and 65,951.96

Step by Step Solution

1. Step 1: Write the proportion equation
   116,928.80 : 161,377.52 = 65,951.96 : x
2. Step 2: Convert to fraction form
   116,928.80/161,377.52 = 65,951.96/x
3. Step 3: Cross multiply
   116,928.80x = 161,377.52 × 65,951.96
4. Step 4: Simplify right side
   116,928.80x = 10,643,163,743.94
5. Step 5: Solve for x
   x = 10,643,163,743.94/116,928.80
6. Step 6: Final answer
   x = 91,022.60