Finding the Fourth Proportional to 8,118.72, 12,174.24 and 3,734.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,118.72 : 12,174.24 = 3,734.88 : x
2. Step 2: Convert to fraction form
   8,118.72/12,174.24 = 3,734.88/x
3. Step 3: Cross multiply
   8,118.72x = 12,174.24 × 3,734.88
4. Step 4: Simplify right side
   8,118.72x = 45,469,325.49
5. Step 5: Solve for x
   x = 45,469,325.49/8,118.72
6. Step 6: Final answer
   x = 5,600.55