Finding the Fourth Proportional to 7,003.20, 9,665.28 and 4,353.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.20 : 9,665.28 = 4,353.60 : x
2. Step 2: Convert to fraction form
   7,003.20/9,665.28 = 4,353.60/x
3. Step 3: Cross multiply
   7,003.20x = 9,665.28 × 4,353.60
4. Step 4: Simplify right side
   7,003.20x = 42,078,763.01
5. Step 5: Solve for x
   x = 42,078,763.01/7,003.20
6. Step 6: Final answer
   x = 6,008.51