Finding the Fourth Proportional to 16,943.90, 23,383.71 and 9,390.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,943.90 : 23,383.71 = 9,390.56 : x
2. Step 2: Convert to fraction form
   16,943.90/23,383.71 = 9,390.56/x
3. Step 3: Cross multiply
   16,943.90x = 23,383.71 × 9,390.56
4. Step 4: Simplify right side
   16,943.90x = 219,586,014.86
5. Step 5: Solve for x
   x = 219,586,014.86/16,943.90
6. Step 6: Final answer
   x = 12,959.59