Finding the Fourth Proportional to 9,565.40, 13,196.47 and 5,531.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,565.40 : 13,196.47 = 5,531.49 : x
2. Step 2: Convert to fraction form
   9,565.40/13,196.47 = 5,531.49/x
3. Step 3: Cross multiply
   9,565.40x = 13,196.47 × 5,531.49
4. Step 4: Simplify right side
   9,565.40x = 72,996,075.86
5. Step 5: Solve for x
   x = 72,996,075.86/9,565.40
6. Step 6: Final answer
   x = 7,631.26