Finding the Fourth Proportional to 7,499.52, 10,349.12 and 4,142.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.52 : 10,349.12 = 4,142.28 : x
2. Step 2: Convert to fraction form
   7,499.52/10,349.12 = 4,142.28/x
3. Step 3: Cross multiply
   7,499.52x = 10,349.12 × 4,142.28
4. Step 4: Simplify right side
   7,499.52x = 42,868,952.79
5. Step 5: Solve for x
   x = 42,868,952.79/7,499.52
6. Step 6: Final answer
   x = 5,716.23