Finding the Fourth Proportional to 81,171.39, 111,944 and 50,959.53

Step by Step Solution

1. Step 1: Write the proportion equation
   81,171.39 : 111,944 = 50,959.53 : x
2. Step 2: Convert to fraction form
   81,171.39/111,944 = 50,959.53/x
3. Step 3: Cross multiply
   81,171.39x = 111,944 × 50,959.53
4. Step 4: Simplify right side
   81,171.39x = 5,704,613,626.32
5. Step 5: Solve for x
   x = 5,704,613,626.32/81,171.39
6. Step 6: Final answer
   x = 70,278.62