Finding the Fourth Proportional to 9,565.45, 13,200.10 and 5,531.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,565.45 : 13,200.10 = 5,531.97 : x
2. Step 2: Convert to fraction form
   9,565.45/13,200.10 = 5,531.97/x
3. Step 3: Cross multiply
   9,565.45x = 13,200.10 × 5,531.97
4. Step 4: Simplify right side
   9,565.45x = 73,022,529.54
5. Step 5: Solve for x
   x = 73,022,529.54/9,565.45
6. Step 6: Final answer
   x = 7,633.99