Finding the Fourth Proportional to 16,272.71, 22,449.69 and 10,605.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,272.71 : 22,449.69 = 10,605.38 : x
2. Step 2: Convert to fraction form
   16,272.71/22,449.69 = 10,605.38/x
3. Step 3: Cross multiply
   16,272.71x = 22,449.69 × 10,605.38
4. Step 4: Simplify right side
   16,272.71x = 238,087,381.08
5. Step 5: Solve for x
   x = 238,087,381.08/16,272.71
6. Step 6: Final answer
   x = 14,631.09