Finding the Fourth Proportional to 82,271.60, 123,407.39 and 19,942.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,271.60 : 123,407.39 = 19,942.10 : x
2. Step 2: Convert to fraction form
   82,271.60/123,407.39 = 19,942.10/x
3. Step 3: Cross multiply
   82,271.60x = 123,407.39 × 19,942.10
4. Step 4: Simplify right side
   82,271.60x = 2,461,002,512.12
5. Step 5: Solve for x
   x = 2,461,002,512.12/82,271.60
6. Step 6: Final answer
   x = 29,913.15