Finding the Fourth Proportional to 12,091.37, 18,137.16 and 3,771.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,091.37 : 18,137.16 = 3,771.05 : x
2. Step 2: Convert to fraction form
   12,091.37/18,137.16 = 3,771.05/x
3. Step 3: Cross multiply
   12,091.37x = 18,137.16 × 3,771.05
4. Step 4: Simplify right side
   12,091.37x = 68,396,046.53
5. Step 5: Solve for x
   x = 68,396,046.53/12,091.37
6. Step 6: Final answer
   x = 5,656.60