Finding the Fourth Proportional to 12,628.50, 18,945.18 and 5,703

Step by Step Solution

1. Step 1: Write the proportion equation
   12,628.50 : 18,945.18 = 5,703 : x
2. Step 2: Convert to fraction form
   12,628.50/18,945.18 = 5,703/x
3. Step 3: Cross multiply
   12,628.50x = 18,945.18 × 5,703
4. Step 4: Simplify right side
   12,628.50x = 108,044,361.54
5. Step 5: Solve for x
   x = 108,044,361.54/12,628.50
6. Step 6: Final answer
   x = 8,555.60