Finding the Fourth Proportional to 9,697.56, 13,381.92 and 5,505

Step by Step Solution

1. Step 1: Write the proportion equation
   9,697.56 : 13,381.92 = 5,505 : x
2. Step 2: Convert to fraction form
   9,697.56/13,381.92 = 5,505/x
3. Step 3: Cross multiply
   9,697.56x = 13,381.92 × 5,505
4. Step 4: Simplify right side
   9,697.56x = 73,667,469.60
5. Step 5: Solve for x
   x = 73,667,469.60/9,697.56
6. Step 6: Final answer
   x = 7,596.50