Finding the Fourth Proportional to 82,574.28, 123,863.76 and 20,244.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,574.28 : 123,863.76 = 20,244.72 : x
2. Step 2: Convert to fraction form
   82,574.28/123,863.76 = 20,244.72/x
3. Step 3: Cross multiply
   82,574.28x = 123,863.76 × 20,244.72
4. Step 4: Simplify right side
   82,574.28x = 2,507,587,139.35
5. Step 5: Solve for x
   x = 2,507,587,139.35/82,574.28
6. Step 6: Final answer
   x = 30,367.65