Finding the Fourth Proportional to 80,976.21, 111,747.37 and 45,168.54

Step by Step Solution

1. Step 1: Write the proportion equation
   80,976.21 : 111,747.37 = 45,168.54 : x
2. Step 2: Convert to fraction form
   80,976.21/111,747.37 = 45,168.54/x
3. Step 3: Cross multiply
   80,976.21x = 111,747.37 × 45,168.54
4. Step 4: Simplify right side
   80,976.21x = 5,047,465,551.74
5. Step 5: Solve for x
   x = 5,047,465,551.74/80,976.21
6. Step 6: Final answer
   x = 62,332.70