Finding the Fourth Proportional to 5,179.62, 7,145.60 and 3,500.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179.62 : 7,145.60 = 3,500.42 : x
2. Step 2: Convert to fraction form
   5,179.62/7,145.60 = 3,500.42/x
3. Step 3: Cross multiply
   5,179.62x = 7,145.60 × 3,500.42
4. Step 4: Simplify right side
   5,179.62x = 25,012,561.05
5. Step 5: Solve for x
   x = 25,012,561.05/5,179.62
6. Step 6: Final answer
   x = 4,829.03