Finding the Fourth Proportional to 9,520.89, 14,284.72 and 4,255.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,520.89 : 14,284.72 = 4,255.42 : x
2. Step 2: Convert to fraction form
   9,520.89/14,284.72 = 4,255.42/x
3. Step 3: Cross multiply
   9,520.89x = 14,284.72 × 4,255.42
4. Step 4: Simplify right side
   9,520.89x = 60,787,483.18
5. Step 5: Solve for x
   x = 60,787,483.18/9,520.89
6. Step 6: Final answer
   x = 6,384.64