Finding the Fourth Proportional to 9,559.71, 13,192.56 and 5,311.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,559.71 : 13,192.56 = 5,311.05 : x
2. Step 2: Convert to fraction form
   9,559.71/13,192.56 = 5,311.05/x
3. Step 3: Cross multiply
   9,559.71x = 13,192.56 × 5,311.05
4. Step 4: Simplify right side
   9,559.71x = 70,066,345.79
5. Step 5: Solve for x
   x = 70,066,345.79/9,559.71
6. Step 6: Final answer
   x = 7,329.34