Finding the Fourth Proportional to 80,930.82, 111,683.28 and 45,119.91

Step by Step Solution

1. Step 1: Write the proportion equation
   80,930.82 : 111,683.28 = 45,119.91 : x
2. Step 2: Convert to fraction form
   80,930.82/111,683.28 = 45,119.91/x
3. Step 3: Cross multiply
   80,930.82x = 111,683.28 × 45,119.91
4. Step 4: Simplify right side
   80,930.82x = 5,039,139,542.10
5. Step 5: Solve for x
   x = 5,039,139,542.10/80,930.82
6. Step 6: Final answer
   x = 62,264.78