Finding the Fourth Proportional to 16,945.98, 23,385.59 and 9,392.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,945.98 : 23,385.59 = 9,392.45 : x
2. Step 2: Convert to fraction form
   16,945.98/23,385.59 = 9,392.45/x
3. Step 3: Cross multiply
   16,945.98x = 23,385.59 × 9,392.45
4. Step 4: Simplify right side
   16,945.98x = 219,647,820.91
5. Step 5: Solve for x
   x = 219,647,820.91/16,945.98
6. Step 6: Final answer
   x = 12,961.65