Finding the Fourth Proportional to 9,097.56, 12,555.72 and 5,561.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,097.56 : 12,555.72 = 5,561.28 : x
2. Step 2: Convert to fraction form
   9,097.56/12,555.72 = 5,561.28/x
3. Step 3: Cross multiply
   9,097.56x = 12,555.72 × 5,561.28
4. Step 4: Simplify right side
   9,097.56x = 69,825,874.52
5. Step 5: Solve for x
   x = 69,825,874.52/9,097.56
6. Step 6: Final answer
   x = 7,675.23