Finding the Fourth Proportional to 9,518.38, 14,271.48 and 4,578.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,518.38 : 14,271.48 = 4,578.18 : x
2. Step 2: Convert to fraction form
   9,518.38/14,271.48 = 4,578.18/x
3. Step 3: Cross multiply
   9,518.38x = 14,271.48 × 4,578.18
4. Step 4: Simplify right side
   9,518.38x = 65,337,404.31
5. Step 5: Solve for x
   x = 65,337,404.31/9,518.38
6. Step 6: Final answer
   x = 6,864.34