Finding the Fourth Proportional to 82,802.49, 124,205.78 and 30,211.97

Step by Step Solution

1. Step 1: Write the proportion equation
   82,802.49 : 124,205.78 = 30,211.97 : x
2. Step 2: Convert to fraction form
   82,802.49/124,205.78 = 30,211.97/x
3. Step 3: Cross multiply
   82,802.49x = 124,205.78 × 30,211.97
4. Step 4: Simplify right side
   82,802.49x = 3,752,500,527.10
5. Step 5: Solve for x
   x = 3,752,500,527.10/82,802.49
6. Step 6: Final answer
   x = 45,318.69