Finding the Fourth Proportional to 9,406.84, 14,111.99 and 7,667.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,406.84 : 14,111.99 = 7,667.28 : x
2. Step 2: Convert to fraction form
   9,406.84/14,111.99 = 7,667.28/x
3. Step 3: Cross multiply
   9,406.84x = 14,111.99 × 7,667.28
4. Step 4: Simplify right side
   9,406.84x = 108,200,578.69
5. Step 5: Solve for x
   x = 108,200,578.69/9,406.84
6. Step 6: Final answer
   x = 11,502.33