Finding the Fourth Proportional to 9,596.04, 13,242.78 and 5,617.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,596.04 : 13,242.78 = 5,617.20 : x
2. Step 2: Convert to fraction form
   9,596.04/13,242.78 = 5,617.20/x
3. Step 3: Cross multiply
   9,596.04x = 13,242.78 × 5,617.20
4. Step 4: Simplify right side
   9,596.04x = 74,387,343.82
5. Step 5: Solve for x
   x = 74,387,343.82/9,596.04
6. Step 6: Final answer
   x = 7,751.88