Finding the Fourth Proportional to 4,762.78, 7,103.90 and 4,488.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,762.78 : 7,103.90 = 4,488.38 : x
2. Step 2: Convert to fraction form
   4,762.78/7,103.90 = 4,488.38/x
3. Step 3: Cross multiply
   4,762.78x = 7,103.90 × 4,488.38
4. Step 4: Simplify right side
   4,762.78x = 31,885,002.68
5. Step 5: Solve for x
   x = 31,885,002.68/4,762.78
6. Step 6: Final answer
   x = 6,694.62