Finding the Fourth Proportional to 7,648.55, 10,555.42 and 4,292.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,648.55 : 10,555.42 = 4,292.43 : x
2. Step 2: Convert to fraction form
   7,648.55/10,555.42 = 4,292.43/x
3. Step 3: Cross multiply
   7,648.55x = 10,555.42 × 4,292.43
4. Step 4: Simplify right side
   7,648.55x = 45,308,401.47
5. Step 5: Solve for x
   x = 45,308,401.47/7,648.55
6. Step 6: Final answer
   x = 5,923.79