Finding the Fourth Proportional to 7,499.44, 10,349.42 and 4,142.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.44 : 10,349.42 = 4,142.30 : x
2. Step 2: Convert to fraction form
   7,499.44/10,349.42 = 4,142.30/x
3. Step 3: Cross multiply
   7,499.44x = 10,349.42 × 4,142.30
4. Step 4: Simplify right side
   7,499.44x = 42,870,402.47
5. Step 5: Solve for x
   x = 42,870,402.47/7,499.44
6. Step 6: Final answer
   x = 5,716.48