Finding the Fourth Proportional to 82,515.78, 123,780.21 and 23,351.82

Step by Step Solution

1. Step 1: Write the proportion equation
   82,515.78 : 123,780.21 = 23,351.82 : x
2. Step 2: Convert to fraction form
   82,515.78/123,780.21 = 23,351.82/x
3. Step 3: Cross multiply
   82,515.78x = 123,780.21 × 23,351.82
4. Step 4: Simplify right side
   82,515.78x = 2,890,493,183.48
5. Step 5: Solve for x
   x = 2,890,493,183.48/82,515.78
6. Step 6: Final answer
   x = 35,029.58