Finding the Fourth Proportional to 3,773.69, 5,689.48 and 3,519.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,773.69 : 5,689.48 = 3,519.59 : x
2. Step 2: Convert to fraction form
   3,773.69/5,689.48 = 3,519.59/x
3. Step 3: Cross multiply
   3,773.69x = 5,689.48 × 3,519.59
4. Step 4: Simplify right side
   3,773.69x = 20,024,636.91
5. Step 5: Solve for x
   x = 20,024,636.91/3,773.69
6. Step 6: Final answer
   x = 5,306.38