Finding the Fourth Proportional to 12,200.68, 18,303.72 and 3,768.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.68 : 18,303.72 = 3,768.04 : x
2. Step 2: Convert to fraction form
   12,200.68/18,303.72 = 3,768.04/x
3. Step 3: Cross multiply
   12,200.68x = 18,303.72 × 3,768.04
4. Step 4: Simplify right side
   12,200.68x = 68,969,149.11
5. Step 5: Solve for x
   x = 68,969,149.11/12,200.68
6. Step 6: Final answer
   x = 5,652.89