Finding the Fourth Proportional to 81,022.78, 111,804.15 and 50,798.44

Step by Step Solution

1. Step 1: Write the proportion equation
   81,022.78 : 111,804.15 = 50,798.44 : x
2. Step 2: Convert to fraction form
   81,022.78/111,804.15 = 50,798.44/x
3. Step 3: Cross multiply
   81,022.78x = 111,804.15 × 50,798.44
4. Step 4: Simplify right side
   81,022.78x = 5,679,476,450.03
5. Step 5: Solve for x
   x = 5,679,476,450.03/81,022.78
6. Step 6: Final answer
   x = 70,097.28