Finding the Fourth Proportional to 9,605.69, 13,255.92 and 5,357.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,605.69 : 13,255.92 = 5,357.03 : x
2. Step 2: Convert to fraction form
   9,605.69/13,255.92 = 5,357.03/x
3. Step 3: Cross multiply
   9,605.69x = 13,255.92 × 5,357.03
4. Step 4: Simplify right side
   9,605.69x = 71,012,274.75
5. Step 5: Solve for x
   x = 71,012,274.75/9,605.69
6. Step 6: Final answer
   x = 7,392.73