Finding the Fourth Proportional to 16,109.54, 22,218.67 and 10,434.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,109.54 : 22,218.67 = 10,434.28 : x
2. Step 2: Convert to fraction form
   16,109.54/22,218.67 = 10,434.28/x
3. Step 3: Cross multiply
   16,109.54x = 22,218.67 × 10,434.28
4. Step 4: Simplify right side
   16,109.54x = 231,835,824.01
5. Step 5: Solve for x
   x = 231,835,824.01/16,109.54
6. Step 6: Final answer
   x = 14,391.21