Finding the Fourth Proportional to 12,112.68, 18,168.84 and 3,347.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,112.68 : 18,168.84 = 3,347.40 : x
2. Step 2: Convert to fraction form
   12,112.68/18,168.84 = 3,347.40/x
3. Step 3: Cross multiply
   12,112.68x = 18,168.84 × 3,347.40
4. Step 4: Simplify right side
   12,112.68x = 60,818,375.02
5. Step 5: Solve for x
   x = 60,818,375.02/12,112.68
6. Step 6: Final answer
   x = 5,021.05