Finding the Fourth Proportional to 16,067.94, 22,162.32 and 9,780.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,067.94 : 22,162.32 = 9,780.72 : x
2. Step 2: Convert to fraction form
   16,067.94/22,162.32 = 9,780.72/x
3. Step 3: Cross multiply
   16,067.94x = 22,162.32 × 9,780.72
4. Step 4: Simplify right side
   16,067.94x = 216,763,446.47
5. Step 5: Solve for x
   x = 216,763,446.47/16,067.94
6. Step 6: Final answer
   x = 13,490.43