Finding the Fourth Proportional to 9,561.88, 13,192.20 and 5,786.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,561.88 : 13,192.20 = 5,786.20 : x
2. Step 2: Convert to fraction form
   9,561.88/13,192.20 = 5,786.20/x
3. Step 3: Cross multiply
   9,561.88x = 13,192.20 × 5,786.20
4. Step 4: Simplify right side
   9,561.88x = 76,332,707.64
5. Step 5: Solve for x
   x = 76,332,707.64/9,561.88
6. Step 6: Final answer
   x = 7,983.02