Finding the Fourth Proportional to 5,145.62, 7,103.42 and 3,447.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,145.62 : 7,103.42 = 3,447.05 : x
2. Step 2: Convert to fraction form
   5,145.62/7,103.42 = 3,447.05/x
3. Step 3: Cross multiply
   5,145.62x = 7,103.42 × 3,447.05
4. Step 4: Simplify right side
   5,145.62x = 24,485,844.43
5. Step 5: Solve for x
   x = 24,485,844.43/5,145.62
6. Step 6: Final answer
   x = 4,758.58