Finding the Fourth Proportional to 9,605.59, 13,255.53 and 5,356.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,605.59 : 13,255.53 = 5,356.63 : x
2. Step 2: Convert to fraction form
   9,605.59/13,255.53 = 5,356.63/x
3. Step 3: Cross multiply
   9,605.59x = 13,255.53 × 5,356.63
4. Step 4: Simplify right side
   9,605.59x = 71,004,969.66
5. Step 5: Solve for x
   x = 71,004,969.66/9,605.59
6. Step 6: Final answer
   x = 7,392.05