Finding the Fourth Proportional to 3,754.62, 5,178.42 and 3,503.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,754.62 : 5,178.42 = 3,503.12 : x
2. Step 2: Convert to fraction form
   3,754.62/5,178.42 = 3,503.12/x
3. Step 3: Cross multiply
   3,754.62x = 5,178.42 × 3,503.12
4. Step 4: Simplify right side
   3,754.62x = 18,140,626.67
5. Step 5: Solve for x
   x = 18,140,626.67/3,754.62
6. Step 6: Final answer
   x = 4,831.55