Finding the Fourth Proportional to 9,559.85, 13,190.29 and 5,578.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,559.85 : 13,190.29 = 5,578.69 : x
2. Step 2: Convert to fraction form
   9,559.85/13,190.29 = 5,578.69/x
3. Step 3: Cross multiply
   9,559.85x = 13,190.29 × 5,578.69
4. Step 4: Simplify right side
   9,559.85x = 73,584,511.03
5. Step 5: Solve for x
   x = 73,584,511.03/9,559.85
6. Step 6: Final answer
   x = 7,697.25