Finding the Fourth Proportional to 80,960.50, 111,725.49 and 47,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,960.50 : 111,725.49 = 47,426.50 : x
2. Step 2: Convert to fraction form
   80,960.50/111,725.49 = 47,426.50/x
3. Step 3: Cross multiply
   80,960.50x = 111,725.49 × 47,426.50
4. Step 4: Simplify right side
   80,960.50x = 5,298,748,951.49
5. Step 5: Solve for x
   x = 5,298,748,951.49/80,960.50
6. Step 6: Final answer
   x = 65,448.57