Finding the Fourth Proportional to 7,454.50, 10,287.23 and 4,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,454.50 : 10,287.23 = 4,142.50 : x
2. Step 2: Convert to fraction form
   7,454.50/10,287.23 = 4,142.50/x
3. Step 3: Cross multiply
   7,454.50x = 10,287.23 × 4,142.50
4. Step 4: Simplify right side
   7,454.50x = 42,614,850.28
5. Step 5: Solve for x
   x = 42,614,850.28/7,454.50
6. Step 6: Final answer
   x = 5,716.66