Finding the Fourth Proportional to 16,641.72, 22,963.68 and 9,570.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,641.72 : 22,963.68 = 9,570.42 : x
2. Step 2: Convert to fraction form
   16,641.72/22,963.68 = 9,570.42/x
3. Step 3: Cross multiply
   16,641.72x = 22,963.68 × 9,570.42
4. Step 4: Simplify right side
   16,641.72x = 219,772,062.35
5. Step 5: Solve for x
   x = 219,772,062.35/16,641.72
6. Step 6: Final answer
   x = 13,206.09