Finding the Fourth Proportional to 12,095.55, 18,142.84 and 3,330.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,095.55 : 18,142.84 = 3,330.22 : x
2. Step 2: Convert to fraction form
   12,095.55/18,142.84 = 3,330.22/x
3. Step 3: Cross multiply
   12,095.55x = 18,142.84 × 3,330.22
4. Step 4: Simplify right side
   12,095.55x = 60,419,648.62
5. Step 5: Solve for x
   x = 60,419,648.62/12,095.55
6. Step 6: Final answer
   x = 4,995.20