Finding the Fourth Proportional to 80,947.94, 111,711.60 and 45,137.96

Step by Step Solution

1. Step 1: Write the proportion equation
   80,947.94 : 111,711.60 = 45,137.96 : x
2. Step 2: Convert to fraction form
   80,947.94/111,711.60 = 45,137.96/x
3. Step 3: Cross multiply
   80,947.94x = 111,711.60 × 45,137.96
4. Step 4: Simplify right side
   80,947.94x = 5,042,433,173.78
5. Step 5: Solve for x
   x = 5,042,433,173.78/80,947.94
6. Step 6: Final answer
   x = 62,292.30