Finding the Fourth Proportional to 80,980.61, 111,761.91 and 45,183.06

Step by Step Solution

1. Step 1: Write the proportion equation
   80,980.61 : 111,761.91 = 45,183.06 : x
2. Step 2: Convert to fraction form
   80,980.61/111,761.91 = 45,183.06/x
3. Step 3: Cross multiply
   80,980.61x = 111,761.91 × 45,183.06
4. Step 4: Simplify right side
   80,980.61x = 5,049,745,085.24
5. Step 5: Solve for x
   x = 5,049,745,085.24/80,980.61
6. Step 6: Final answer
   x = 62,357.46