Finding the Fourth Proportional to 81,040.06, 111,770.98 and 49,208.28

Step by Step Solution

1. Step 1: Write the proportion equation
   81,040.06 : 111,770.98 = 49,208.28 : x
2. Step 2: Convert to fraction form
   81,040.06/111,770.98 = 49,208.28/x
3. Step 3: Cross multiply
   81,040.06x = 111,770.98 × 49,208.28
4. Step 4: Simplify right side
   81,040.06x = 5,500,057,679.71
5. Step 5: Solve for x
   x = 5,500,057,679.71/81,040.06
6. Step 6: Final answer
   x = 67,868.38