Finding the Fourth Proportional to 82,982.56, 124,473.86 and 20,653.06

Step by Step Solution

1. Step 1: Write the proportion equation
   82,982.56 : 124,473.86 = 20,653.06 : x
2. Step 2: Convert to fraction form
   82,982.56/124,473.86 = 20,653.06/x
3. Step 3: Cross multiply
   82,982.56x = 124,473.86 × 20,653.06
4. Step 4: Simplify right side
   82,982.56x = 2,570,766,099.01
5. Step 5: Solve for x
   x = 2,570,766,099.01/82,982.56
6. Step 6: Final answer
   x = 30,979.59