Finding the Fourth Proportional to 82,613.16, 123,919.82 and 20,283.64

Step by Step Solution

1. Step 1: Write the proportion equation
   82,613.16 : 123,919.82 = 20,283.64 : x
2. Step 2: Convert to fraction form
   82,613.16/123,919.82 = 20,283.64/x
3. Step 3: Cross multiply
   82,613.16x = 123,919.82 × 20,283.64
4. Step 4: Simplify right side
   82,613.16x = 2,513,545,017.74
5. Step 5: Solve for x
   x = 2,513,545,017.74/82,613.16
6. Step 6: Final answer
   x = 30,425.48