Finding the Fourth Proportional to 12,108.21, 18,162.42 and 3,343.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,108.21 : 18,162.42 = 3,343.59 : x
2. Step 2: Convert to fraction form
   12,108.21/18,162.42 = 3,343.59/x
3. Step 3: Cross multiply
   12,108.21x = 18,162.42 × 3,343.59
4. Step 4: Simplify right side
   12,108.21x = 60,727,685.89
5. Step 5: Solve for x
   x = 60,727,685.89/12,108.21
6. Step 6: Final answer
   x = 5,015.41