Finding the Fourth Proportional to 80,947.96, 111,708.82 and 45,140.29

Step by Step Solution

1. Step 1: Write the proportion equation
   80,947.96 : 111,708.82 = 45,140.29 : x
2. Step 2: Convert to fraction form
   80,947.96/111,708.82 = 45,140.29/x
3. Step 3: Cross multiply
   80,947.96x = 111,708.82 × 45,140.29
4. Step 4: Simplify right side
   80,947.96x = 5,042,568,307.51
5. Step 5: Solve for x
   x = 5,042,568,307.51/80,947.96
6. Step 6: Final answer
   x = 62,293.95