Finding the Fourth Proportional to 9,061.96, 12,509.42 and 8,494.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,061.96 : 12,509.42 = 8,494.54 : x
2. Step 2: Convert to fraction form
   9,061.96/12,509.42 = 8,494.54/x
3. Step 3: Cross multiply
   9,061.96x = 12,509.42 × 8,494.54
4. Step 4: Simplify right side
   9,061.96x = 106,261,768.57
5. Step 5: Solve for x
   x = 106,261,768.57/9,061.96
6. Step 6: Final answer
   x = 11,726.14