Finding the Fourth Proportional to 9,499.22, 13,107.35 and 5,721.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.22 : 13,107.35 = 5,721.47 : x
2. Step 2: Convert to fraction form
   9,499.22/13,107.35 = 5,721.47/x
3. Step 3: Cross multiply
   9,499.22x = 13,107.35 × 5,721.47
4. Step 4: Simplify right side
   9,499.22x = 74,993,281.20
5. Step 5: Solve for x
   x = 74,993,281.20/9,499.22
6. Step 6: Final answer
   x = 7,894.68