Finding the Fourth Proportional to 82,200.47, 113,424.49 and 49,918.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,200.47 : 113,424.49 = 49,918.30 : x
2. Step 2: Convert to fraction form
   82,200.47/113,424.49 = 49,918.30/x
3. Step 3: Cross multiply
   82,200.47x = 113,424.49 × 49,918.30
4. Step 4: Simplify right side
   82,200.47x = 5,661,957,719.17
5. Step 5: Solve for x
   x = 5,661,957,719.17/82,200.47
6. Step 6: Final answer
   x = 68,879.87