Finding the Fourth Proportional to 8,682.50, 13,019.16 and 3,998.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,682.50 : 13,019.16 = 3,998.42 : x
2. Step 2: Convert to fraction form
   8,682.50/13,019.16 = 3,998.42/x
3. Step 3: Cross multiply
   8,682.50x = 13,019.16 × 3,998.42
4. Step 4: Simplify right side
   8,682.50x = 52,056,069.73
5. Step 5: Solve for x
   x = 52,056,069.73/8,682.50
6. Step 6: Final answer
   x = 5,995.52