Finding the Fourth Proportional to 82,979.82, 124,470.59 and 20,650.32

Step by Step Solution

1. Step 1: Write the proportion equation
   82,979.82 : 124,470.59 = 20,650.32 : x
2. Step 2: Convert to fraction form
   82,979.82/124,470.59 = 20,650.32/x
3. Step 3: Cross multiply
   82,979.82x = 124,470.59 × 20,650.32
4. Step 4: Simplify right side
   82,979.82x = 2,570,357,410.84
5. Step 5: Solve for x
   x = 2,570,357,410.84/82,979.82
6. Step 6: Final answer
   x = 30,975.69