Finding the Fourth Proportional to 9,561.32, 13,161.86 and 8,294.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,561.32 : 13,161.86 = 8,294.92 : x
2. Step 2: Convert to fraction form
   9,561.32/13,161.86 = 8,294.92/x
3. Step 3: Cross multiply
   9,561.32x = 13,161.86 × 8,294.92
4. Step 4: Simplify right side
   9,561.32x = 109,176,563.58
5. Step 5: Solve for x
   x = 109,176,563.58/9,561.32
6. Step 6: Final answer
   x = 11,418.57