Finding the Fourth Proportional to 80,983.62, 111,757.56 and 45,172.71

Step by Step Solution

1. Step 1: Write the proportion equation
   80,983.62 : 111,757.56 = 45,172.71 : x
2. Step 2: Convert to fraction form
   80,983.62/111,757.56 = 45,172.71/x
3. Step 3: Cross multiply
   80,983.62x = 111,757.56 × 45,172.71
4. Step 4: Simplify right side
   80,983.62x = 5,048,391,848.19
5. Step 5: Solve for x
   x = 5,048,391,848.19/80,983.62
6. Step 6: Final answer
   x = 62,338.43