Finding the Fourth Proportional to 9,472.32, 13,066.56 and 8,805.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,472.32 : 13,066.56 = 8,805.12 : x
2. Step 2: Convert to fraction form
   9,472.32/13,066.56 = 8,805.12/x
3. Step 3: Cross multiply
   9,472.32x = 13,066.56 × 8,805.12
4. Step 4: Simplify right side
   9,472.32x = 115,052,628.79
5. Step 5: Solve for x
   x = 115,052,628.79/9,472.32
6. Step 6: Final answer
   x = 12,146.19