Finding the Fourth Proportional to 9,507.23, 13,120.81 and 5,528.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,507.23 : 13,120.81 = 5,528.27 : x
2. Step 2: Convert to fraction form
   9,507.23/13,120.81 = 5,528.27/x
3. Step 3: Cross multiply
   9,507.23x = 13,120.81 × 5,528.27
4. Step 4: Simplify right side
   9,507.23x = 72,535,380.30
5. Step 5: Solve for x
   x = 72,535,380.30/9,507.23
6. Step 6: Final answer
   x = 7,629.50