Finding the Fourth Proportional to 7,499.57, 10,349.35 and 4,142.36

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.57 : 10,349.35 = 4,142.36 : x
2. Step 2: Convert to fraction form
   7,499.57/10,349.35 = 4,142.36/x
3. Step 3: Cross multiply
   7,499.57x = 10,349.35 × 4,142.36
4. Step 4: Simplify right side
   7,499.57x = 42,870,748.98
5. Step 5: Solve for x
   x = 42,870,748.98/7,499.57
6. Step 6: Final answer
   x = 5,716.43