Finding the Fourth Proportional to 12,109.92, 18,164.34 and 3,344.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.92 : 18,164.34 = 3,344.64 : x
2. Step 2: Convert to fraction form
   12,109.92/18,164.34 = 3,344.64/x
3. Step 3: Cross multiply
   12,109.92x = 18,164.34 × 3,344.64
4. Step 4: Simplify right side
   12,109.92x = 60,753,178.14
5. Step 5: Solve for x
   x = 60,753,178.14/12,109.92
6. Step 6: Final answer
   x = 5,016.81