Finding the Fourth Proportional to 7,943.31, 10,965.39 and 5,429.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,943.31 : 10,965.39 = 5,429.49 : x
2. Step 2: Convert to fraction form
   7,943.31/10,965.39 = 5,429.49/x
3. Step 3: Cross multiply
   7,943.31x = 10,965.39 × 5,429.49
4. Step 4: Simplify right side
   7,943.31x = 59,536,475.35
5. Step 5: Solve for x
   x = 59,536,475.35/7,943.31
6. Step 6: Final answer
   x = 7,495.17