Finding the Fourth Proportional to 7,495.31, 10,343.39 and 4,138.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,495.31 : 10,343.39 = 4,138.05 : x
2. Step 2: Convert to fraction form
   7,495.31/10,343.39 = 4,138.05/x
3. Step 3: Cross multiply
   7,495.31x = 10,343.39 × 4,138.05
4. Step 4: Simplify right side
   7,495.31x = 42,801,459.82
5. Step 5: Solve for x
   x = 42,801,459.82/7,495.31
6. Step 6: Final answer
   x = 5,710.43