Finding the Fourth Proportional to 9,488.28, 14,234.04 and 4,225.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,488.28 : 14,234.04 = 4,225.20 : x
2. Step 2: Convert to fraction form
   9,488.28/14,234.04 = 4,225.20/x
3. Step 3: Cross multiply
   9,488.28x = 14,234.04 × 4,225.20
4. Step 4: Simplify right side
   9,488.28x = 60,141,665.81
5. Step 5: Solve for x
   x = 60,141,665.81/9,488.28
6. Step 6: Final answer
   x = 6,338.52