Finding the Fourth Proportional to 81,055.82, 111,858.92 and 50,842.42

Step by Step Solution

1. Step 1: Write the proportion equation
   81,055.82 : 111,858.92 = 50,842.42 : x
2. Step 2: Convert to fraction form
   81,055.82/111,858.92 = 50,842.42/x
3. Step 3: Cross multiply
   81,055.82x = 111,858.92 × 50,842.42
4. Step 4: Simplify right side
   81,055.82x = 5,687,178,191.39
5. Step 5: Solve for x
   x = 5,687,178,191.39/81,055.82
6. Step 6: Final answer
   x = 70,163.72