Finding the Fourth Proportional to 10,457.45, 14,431.31 and 5,742.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,457.45 : 14,431.31 = 5,742.04 : x
2. Step 2: Convert to fraction form
   10,457.45/14,431.31 = 5,742.04/x
3. Step 3: Cross multiply
   10,457.45x = 14,431.31 × 5,742.04
4. Step 4: Simplify right side
   10,457.45x = 82,865,137.55
5. Step 5: Solve for x
   x = 82,865,137.55/10,457.45
6. Step 6: Final answer
   x = 7,924.03