Finding the Fourth Proportional to 80,981.16, 111,752.69 and 45,170.25

Step by Step Solution

1. Step 1: Write the proportion equation
   80,981.16 : 111,752.69 = 45,170.25 : x
2. Step 2: Convert to fraction form
   80,981.16/111,752.69 = 45,170.25/x
3. Step 3: Cross multiply
   80,981.16x = 111,752.69 × 45,170.25
4. Step 4: Simplify right side
   80,981.16x = 5,047,896,945.47
5. Step 5: Solve for x
   x = 5,047,896,945.47/80,981.16
6. Step 6: Final answer
   x = 62,334.21