Finding the Fourth Proportional to 12,091.56, 18,132.42 and 3,768.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,091.56 : 18,132.42 = 3,768.78 : x
2. Step 2: Convert to fraction form
   12,091.56/18,132.42 = 3,768.78/x
3. Step 3: Cross multiply
   12,091.56x = 18,132.42 × 3,768.78
4. Step 4: Simplify right side
   12,091.56x = 68,337,101.85
5. Step 5: Solve for x
   x = 68,337,101.85/12,091.56
6. Step 6: Final answer
   x = 5,651.64