Finding the Fourth Proportional to 7,500.12, 10,350.04 and 4,142.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,500.12 : 10,350.04 = 4,142.94 : x
2. Step 2: Convert to fraction form
   7,500.12/10,350.04 = 4,142.94/x
3. Step 3: Cross multiply
   7,500.12x = 10,350.04 × 4,142.94
4. Step 4: Simplify right side
   7,500.12x = 42,879,594.72
5. Step 5: Solve for x
   x = 42,879,594.72/7,500.12
6. Step 6: Final answer
   x = 5,717.19