Finding the Fourth Proportional to 7,499.42, 10,349.10 and 4,142.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.42 : 10,349.10 = 4,142.38 : x
2. Step 2: Convert to fraction form
   7,499.42/10,349.10 = 4,142.38/x
3. Step 3: Cross multiply
   7,499.42x = 10,349.10 × 4,142.38
4. Step 4: Simplify right side
   7,499.42x = 42,869,904.86
5. Step 5: Solve for x
   x = 42,869,904.86/7,499.42
6. Step 6: Final answer
   x = 5,716.43