Finding the Fourth Proportional to 7,018.11, 10,519.61 and 3,727.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.11 : 10,519.61 = 3,727.89 : x
2. Step 2: Convert to fraction form
   7,018.11/10,519.61 = 3,727.89/x
3. Step 3: Cross multiply
   7,018.11x = 10,519.61 × 3,727.89
4. Step 4: Simplify right side
   7,018.11x = 39,215,930.28
5. Step 5: Solve for x
   x = 39,215,930.28/7,018.11
6. Step 6: Final answer
   x = 5,587.82