Finding the Fourth Proportional to 9,301.62, 13,960.12 and 9,228.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,301.62 : 13,960.12 = 9,228.72 : x
2. Step 2: Convert to fraction form
   9,301.62/13,960.12 = 9,228.72/x
3. Step 3: Cross multiply
   9,301.62x = 13,960.12 × 9,228.72
4. Step 4: Simplify right side
   9,301.62x = 128,834,038.65
5. Step 5: Solve for x
   x = 128,834,038.65/9,301.62
6. Step 6: Final answer
   x = 13,850.71