Finding the Fourth Proportional to 12,131.75, 18,196.81 and 3,366.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.75 : 18,196.81 = 3,366.74 : x
2. Step 2: Convert to fraction form
   12,131.75/18,196.81 = 3,366.74/x
3. Step 3: Cross multiply
   12,131.75x = 18,196.81 × 3,366.74
4. Step 4: Simplify right side
   12,131.75x = 61,263,928.10
5. Step 5: Solve for x
   x = 61,263,928.10/12,131.75
6. Step 6: Final answer
   x = 5,049.88