Finding the Fourth Proportional to 82,200.40, 113,424.38 and 49,918.23

Step by Step Solution

1. Step 1: Write the proportion equation
   82,200.40 : 113,424.38 = 49,918.23 : x
2. Step 2: Convert to fraction form
   82,200.40/113,424.38 = 49,918.23/x
3. Step 3: Cross multiply
   82,200.40x = 113,424.38 × 49,918.23
4. Step 4: Simplify right side
   82,200.40x = 5,661,943,721.33
5. Step 5: Solve for x
   x = 5,661,943,721.33/82,200.40
6. Step 6: Final answer
   x = 68,879.76