Finding the Fourth Proportional to 80,951.62, 111,715.20 and 45,141.28

Step by Step Solution

1. Step 1: Write the proportion equation
   80,951.62 : 111,715.20 = 45,141.28 : x
2. Step 2: Convert to fraction form
   80,951.62/111,715.20 = 45,141.28/x
3. Step 3: Cross multiply
   80,951.62x = 111,715.20 × 45,141.28
4. Step 4: Simplify right side
   80,951.62x = 5,042,967,123.46
5. Step 5: Solve for x
   x = 5,042,967,123.46/80,951.62
6. Step 6: Final answer
   x = 62,296.06