Finding the Fourth Proportional to 10,974.12, 16,455.69 and 5,425.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,974.12 : 16,455.69 = 5,425.62 : x
2. Step 2: Convert to fraction form
   10,974.12/16,455.69 = 5,425.62/x
3. Step 3: Cross multiply
   10,974.12x = 16,455.69 × 5,425.62
4. Step 4: Simplify right side
   10,974.12x = 89,282,320.78
5. Step 5: Solve for x
   x = 89,282,320.78/10,974.12
6. Step 6: Final answer
   x = 8,135.72