Finding the Fourth Proportional to 82,871.10, 124,324.65 and 30,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,871.10 : 124,324.65 = 30,280.50 : x
2. Step 2: Convert to fraction form
   82,871.10/124,324.65 = 30,280.50/x
3. Step 3: Cross multiply
   82,871.10x = 124,324.65 × 30,280.50
4. Step 4: Simplify right side
   82,871.10x = 3,764,612,564.33
5. Step 5: Solve for x
   x = 3,764,612,564.33/82,871.10
6. Step 6: Final answer
   x = 45,427.33