Finding the Fourth Proportional to 9,665.20, 13,337.76 and 5,473.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.20 : 13,337.76 = 5,473.36 : x
2. Step 2: Convert to fraction form
   9,665.20/13,337.76 = 5,473.36/x
3. Step 3: Cross multiply
   9,665.20x = 13,337.76 × 5,473.36
4. Step 4: Simplify right side
   9,665.20x = 73,002,362.07
5. Step 5: Solve for x
   x = 73,002,362.07/9,665.20
6. Step 6: Final answer
   x = 7,553.11