Finding the Fourth Proportional to 12,464.82, 18,713.57 and 8,331.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,464.82 : 18,713.57 = 8,331.39 : x
2. Step 2: Convert to fraction form
   12,464.82/18,713.57 = 8,331.39/x
3. Step 3: Cross multiply
   12,464.82x = 18,713.57 × 8,331.39
4. Step 4: Simplify right side
   12,464.82x = 155,910,008.31
5. Step 5: Solve for x
   x = 155,910,008.31/12,464.82
6. Step 6: Final answer
   x = 12,508.00