Finding the Fourth Proportional to 7,003.29, 9,662.88 and 3,978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.29 : 9,662.88 = 3,978.24 : x
2. Step 2: Convert to fraction form
   7,003.29/9,662.88 = 3,978.24/x
3. Step 3: Cross multiply
   7,003.29x = 9,662.88 × 3,978.24
4. Step 4: Simplify right side
   7,003.29x = 38,441,255.73
5. Step 5: Solve for x
   x = 38,441,255.73/7,003.29
6. Step 6: Final answer
   x = 5,489.03