Finding the Fourth Proportional to 3,635.20, 5,039.59 and 3,438.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,635.20 : 5,039.59 = 3,438.10 : x
2. Step 2: Convert to fraction form
   3,635.20/5,039.59 = 3,438.10/x
3. Step 3: Cross multiply
   3,635.20x = 5,039.59 × 3,438.10
4. Step 4: Simplify right side
   3,635.20x = 17,326,614.38
5. Step 5: Solve for x
   x = 17,326,614.38/3,635.20
6. Step 6: Final answer
   x = 4,766.34