Finding the Fourth Proportional to 16,896.38, 23,316.06 and 9,342.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,896.38 : 23,316.06 = 9,342.25 : x
2. Step 2: Convert to fraction form
   16,896.38/23,316.06 = 9,342.25/x
3. Step 3: Cross multiply
   16,896.38x = 23,316.06 × 9,342.25
4. Step 4: Simplify right side
   16,896.38x = 217,824,414.82
5. Step 5: Solve for x
   x = 217,824,414.82/16,896.38
6. Step 6: Final answer
   x = 12,891.78