Finding the Fourth Proportional to 82,021.82, 123,049.12 and 25,870.62

Step by Step Solution

1. Step 1: Write the proportion equation
   82,021.82 : 123,049.12 = 25,870.62 : x
2. Step 2: Convert to fraction form
   82,021.82/123,049.12 = 25,870.62/x
3. Step 3: Cross multiply
   82,021.82x = 123,049.12 × 25,870.62
4. Step 4: Simplify right side
   82,021.82x = 3,183,357,024.85
5. Step 5: Solve for x
   x = 3,183,357,024.85/82,021.82
6. Step 6: Final answer
   x = 38,811.10