Finding the Fourth Proportional to 3,786.37, 5,680.49 and 3,723.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,786.37 : 5,680.49 = 3,723.58 : x
2. Step 2: Convert to fraction form
   3,786.37/5,680.49 = 3,723.58/x
3. Step 3: Cross multiply
   3,786.37x = 5,680.49 × 3,723.58
4. Step 4: Simplify right side
   3,786.37x = 21,151,758.95
5. Step 5: Solve for x
   x = 21,151,758.95/3,786.37
6. Step 6: Final answer
   x = 5,586.30