Finding the Fourth Proportional to 12,131.58, 18,197.27 and 3,366.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.58 : 18,197.27 = 3,366.50 : x
2. Step 2: Convert to fraction form
   12,131.58/18,197.27 = 3,366.50/x
3. Step 3: Cross multiply
   12,131.58x = 18,197.27 × 3,366.50
4. Step 4: Simplify right side
   12,131.58x = 61,261,109.46
5. Step 5: Solve for x
   x = 61,261,109.46/12,131.58
6. Step 6: Final answer
   x = 5,049.72