Finding the Fourth Proportional to 7,446.43, 10,275.42 and 4,089.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,446.43 : 10,275.42 = 4,089.25 : x
2. Step 2: Convert to fraction form
   7,446.43/10,275.42 = 4,089.25/x
3. Step 3: Cross multiply
   7,446.43x = 10,275.42 × 4,089.25
4. Step 4: Simplify right side
   7,446.43x = 42,018,761.24
5. Step 5: Solve for x
   x = 42,018,761.24/7,446.43
6. Step 6: Final answer
   x = 5,642.81