Finding the Fourth Proportional to 81,198.82, 111,998.78 and 52,942.78

Step by Step Solution

1. Step 1: Write the proportion equation
   81,198.82 : 111,998.78 = 52,942.78 : x
2. Step 2: Convert to fraction form
   81,198.82/111,998.78 = 52,942.78/x
3. Step 3: Cross multiply
   81,198.82x = 111,998.78 × 52,942.78
4. Step 4: Simplify right side
   81,198.82x = 5,929,526,505.09
5. Step 5: Solve for x
   x = 5,929,526,505.09/81,198.82
6. Step 6: Final answer
   x = 73,024.79