Finding the Fourth Proportional to 3,728.58, 5,171.76 and 3,595.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728.58 : 5,171.76 = 3,595.61 : x
2. Step 2: Convert to fraction form
   3,728.58/5,171.76 = 3,595.61/x
3. Step 3: Cross multiply
   3,728.58x = 5,171.76 × 3,595.61
4. Step 4: Simplify right side
   3,728.58x = 18,595,606.11
5. Step 5: Solve for x
   x = 18,595,606.11/3,728.58
6. Step 6: Final answer
   x = 4,987.32