Finding the Fourth Proportional to 7,495.28, 10,343.43 and 4,138.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,495.28 : 10,343.43 = 4,138.10 : x
2. Step 2: Convert to fraction form
   7,495.28/10,343.43 = 4,138.10/x
3. Step 3: Cross multiply
   7,495.28x = 10,343.43 × 4,138.10
4. Step 4: Simplify right side
   7,495.28x = 42,802,173.54
5. Step 5: Solve for x
   x = 42,802,173.54/7,495.28
6. Step 6: Final answer
   x = 5,710.55