Finding the Fourth Proportional to 9,448.54, 14,152.56 and 7,685.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,448.54 : 14,152.56 = 7,685.17 : x
2. Step 2: Convert to fraction form
   9,448.54/14,152.56 = 7,685.17/x
3. Step 3: Cross multiply
   9,448.54x = 14,152.56 × 7,685.17
4. Step 4: Simplify right side
   9,448.54x = 108,764,829.54
5. Step 5: Solve for x
   x = 108,764,829.54/9,448.54
6. Step 6: Final answer
   x = 11,511.28