Finding the Fourth Proportional to 7,499.86, 10,349.29 and 4,142.68

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.86 : 10,349.29 = 4,142.68 : x
2. Step 2: Convert to fraction form
   7,499.86/10,349.29 = 4,142.68/x
3. Step 3: Cross multiply
   7,499.86x = 10,349.29 × 4,142.68
4. Step 4: Simplify right side
   7,499.86x = 42,873,796.70
5. Step 5: Solve for x
   x = 42,873,796.70/7,499.86
6. Step 6: Final answer
   x = 5,716.61