Finding the Fourth Proportional to 12,119.88, 18,178.86 and 3,354.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,119.88 : 18,178.86 = 3,354.96 : x
2. Step 2: Convert to fraction form
   12,119.88/18,178.86 = 3,354.96/x
3. Step 3: Cross multiply
   12,119.88x = 18,178.86 × 3,354.96
4. Step 4: Simplify right side
   12,119.88x = 60,989,348.15
5. Step 5: Solve for x
   x = 60,989,348.15/12,119.88
6. Step 6: Final answer
   x = 5,032.17