Finding the Fourth Proportional to 7,198.57, 10,800.74 and 3,500.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,198.57 : 10,800.74 = 3,500.42 : x
2. Step 2: Convert to fraction form
   7,198.57/10,800.74 = 3,500.42/x
3. Step 3: Cross multiply
   7,198.57x = 10,800.74 × 3,500.42
4. Step 4: Simplify right side
   7,198.57x = 37,807,081.06
5. Step 5: Solve for x
   x = 37,807,081.06/7,198.57
6. Step 6: Final answer
   x = 5,252.03