Finding the Fourth Proportional to 12,131.55, 18,197.22 and 3,366.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.55 : 18,197.22 = 3,366.47 : x
2. Step 2: Convert to fraction form
   12,131.55/18,197.22 = 3,366.47/x
3. Step 3: Cross multiply
   12,131.55x = 18,197.22 × 3,366.47
4. Step 4: Simplify right side
   12,131.55x = 61,260,287.39
5. Step 5: Solve for x
   x = 61,260,287.39/12,131.55
6. Step 6: Final answer
   x = 5,049.67