Finding the Fourth Proportional to 12,083.82, 18,124.92 and 3,318

Step by Step Solution

1. Step 1: Write the proportion equation
   12,083.82 : 18,124.92 = 3,318 : x
2. Step 2: Convert to fraction form
   12,083.82/18,124.92 = 3,318/x
3. Step 3: Cross multiply
   12,083.82x = 18,124.92 × 3,318
4. Step 4: Simplify right side
   12,083.82x = 60,138,484.56
5. Step 5: Solve for x
   x = 60,138,484.56/12,083.82
6. Step 6: Final answer
   x = 4,976.78