Finding the Fourth Proportional to 9,387.12, 12,956.04 and 8,441.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,387.12 : 12,956.04 = 8,441.04 : x
2. Step 2: Convert to fraction form
   9,387.12/12,956.04 = 8,441.04/x
3. Step 3: Cross multiply
   9,387.12x = 12,956.04 × 8,441.04
4. Step 4: Simplify right side
   9,387.12x = 109,362,451.88
5. Step 5: Solve for x
   x = 109,362,451.88/9,387.12
6. Step 6: Final answer
   x = 11,650.27