Finding the Fourth Proportional to 81,017.42, 111,774.33 and 50,804.01

Step by Step Solution

1. Step 1: Write the proportion equation
   81,017.42 : 111,774.33 = 50,804.01 : x
2. Step 2: Convert to fraction form
   81,017.42/111,774.33 = 50,804.01/x
3. Step 3: Cross multiply
   81,017.42x = 111,774.33 × 50,804.01
4. Step 4: Simplify right side
   81,017.42x = 5,678,584,179.06
5. Step 5: Solve for x
   x = 5,678,584,179.06/81,017.42
6. Step 6: Final answer
   x = 70,090.91