Finding the Fourth Proportional to 9,665.76, 13,338.96 and 5,474.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.76 : 13,338.96 = 5,474.16 : x
2. Step 2: Convert to fraction form
   9,665.76/13,338.96 = 5,474.16/x
3. Step 3: Cross multiply
   9,665.76x = 13,338.96 × 5,474.16
4. Step 4: Simplify right side
   9,665.76x = 73,019,601.27
5. Step 5: Solve for x
   x = 73,019,601.27/9,665.76
6. Step 6: Final answer
   x = 7,554.46