Finding the Fourth Proportional to 3,776.89, 5,234.19 and 3,724.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,776.89 : 5,234.19 = 3,724.04 : x
2. Step 2: Convert to fraction form
   3,776.89/5,234.19 = 3,724.04/x
3. Step 3: Cross multiply
   3,776.89x = 5,234.19 × 3,724.04
4. Step 4: Simplify right side
   3,776.89x = 19,492,306.76
5. Step 5: Solve for x
   x = 19,492,306.76/3,776.89
6. Step 6: Final answer
   x = 5,160.94