Finding the Fourth Proportional to 9,507.26, 13,120.84 and 5,528.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,507.26 : 13,120.84 = 5,528.12 : x
2. Step 2: Convert to fraction form
   9,507.26/13,120.84 = 5,528.12/x
3. Step 3: Cross multiply
   9,507.26x = 13,120.84 × 5,528.12
4. Step 4: Simplify right side
   9,507.26x = 72,533,578.02
5. Step 5: Solve for x
   x = 72,533,578.02/9,507.26
6. Step 6: Final answer
   x = 7,629.28