Finding the Fourth Proportional to 80,724, 111,399.24 and 45,396

Step by Step Solution

1. Step 1: Write the proportion equation
   80,724 : 111,399.24 = 45,396 : x
2. Step 2: Convert to fraction form
   80,724/111,399.24 = 45,396/x
3. Step 3: Cross multiply
   80,724x = 111,399.24 × 45,396
4. Step 4: Simplify right side
   80,724x = 5,057,079,899.04
5. Step 5: Solve for x
   x = 5,057,079,899.04/80,724
6. Step 6: Final answer
   x = 62,646.55