Finding the Fourth Proportional to 7,648.43, 10,555.25 and 4,292.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,648.43 : 10,555.25 = 4,292.31 : x
2. Step 2: Convert to fraction form
   7,648.43/10,555.25 = 4,292.31/x
3. Step 3: Cross multiply
   7,648.43x = 10,555.25 × 4,292.31
4. Step 4: Simplify right side
   7,648.43x = 45,306,383.67
5. Step 5: Solve for x
   x = 45,306,383.67/7,648.43
6. Step 6: Final answer
   x = 5,923.62