Finding the Fourth Proportional to 16,682.82, 25,012.45 and 8,356.87

Step by Step Solution

1. Step 1: Write the proportion equation
   16,682.82 : 25,012.45 = 8,356.87 : x
2. Step 2: Convert to fraction form
   16,682.82/25,012.45 = 8,356.87/x
3. Step 3: Cross multiply
   16,682.82x = 25,012.45 × 8,356.87
4. Step 4: Simplify right side
   16,682.82x = 209,025,793.03
5. Step 5: Solve for x
   x = 209,025,793.03/16,682.82
6. Step 6: Final answer
   x = 12,529.40