Finding the Fourth Proportional to 82,967.18, 124,450.52 and 20,637.68

Step by Step Solution

1. Step 1: Write the proportion equation
   82,967.18 : 124,450.52 = 20,637.68 : x
2. Step 2: Convert to fraction form
   82,967.18/124,450.52 = 20,637.68/x
3. Step 3: Cross multiply
   82,967.18x = 124,450.52 × 20,637.68
4. Step 4: Simplify right side
   82,967.18x = 2,568,370,007.59
5. Step 5: Solve for x
   x = 2,568,370,007.59/82,967.18
6. Step 6: Final answer
   x = 30,956.46