Finding the Fourth Proportional to 81,171.83, 111,944.59 and 50,959.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,171.83 : 111,944.59 = 50,959.96 : x
2. Step 2: Convert to fraction form
   81,171.83/111,944.59 = 50,959.96/x
3. Step 3: Cross multiply
   81,171.83x = 111,944.59 × 50,959.96
4. Step 4: Simplify right side
   81,171.83x = 5,704,691,841.15
5. Step 5: Solve for x
   x = 5,704,691,841.15/81,171.83
6. Step 6: Final answer
   x = 70,279.21