Finding the Fourth Proportional to 9,563.88, 13,198.52 and 5,315.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,563.88 : 13,198.52 = 5,315.25 : x
2. Step 2: Convert to fraction form
   9,563.88/13,198.52 = 5,315.25/x
3. Step 3: Cross multiply
   9,563.88x = 13,198.52 × 5,315.25
4. Step 4: Simplify right side
   9,563.88x = 70,153,433.43
5. Step 5: Solve for x
   x = 70,153,433.43/9,563.88
6. Step 6: Final answer
   x = 7,335.25