Finding the Fourth Proportional to 16,945.08, 23,382.82 and 9,391.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,945.08 : 23,382.82 = 9,391.72 : x
2. Step 2: Convert to fraction form
   16,945.08/23,382.82 = 9,391.72/x
3. Step 3: Cross multiply
   16,945.08x = 23,382.82 × 9,391.72
4. Step 4: Simplify right side
   16,945.08x = 219,604,898.25
5. Step 5: Solve for x
   x = 219,604,898.25/16,945.08
6. Step 6: Final answer
   x = 12,959.80