Finding the Fourth Proportional to 82,064.50, 113,220.73 and 49,809.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,064.50 : 113,220.73 = 49,809.28 : x
2. Step 2: Convert to fraction form
   82,064.50/113,220.73 = 49,809.28/x
3. Step 3: Cross multiply
   82,064.50x = 113,220.73 × 49,809.28
4. Step 4: Simplify right side
   82,064.50x = 5,639,443,042.37
5. Step 5: Solve for x
   x = 5,639,443,042.37/82,064.50
6. Step 6: Final answer
   x = 68,719.64