Finding the Fourth Proportional to 16,422.81, 22,665.29 and 9,348.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,422.81 : 22,665.29 = 9,348.09 : x
2. Step 2: Convert to fraction form
   16,422.81/22,665.29 = 9,348.09/x
3. Step 3: Cross multiply
   16,422.81x = 22,665.29 × 9,348.09
4. Step 4: Simplify right side
   16,422.81x = 211,877,124.06
5. Step 5: Solve for x
   x = 211,877,124.06/16,422.81
6. Step 6: Final answer
   x = 12,901.39