Finding the Fourth Proportional to 16,279.38, 22,459.58 and 9,903.36

Step by Step Solution

1. Step 1: Write the proportion equation
   16,279.38 : 22,459.58 = 9,903.36 : x
2. Step 2: Convert to fraction form
   16,279.38/22,459.58 = 9,903.36/x
3. Step 3: Cross multiply
   16,279.38x = 22,459.58 × 9,903.36
4. Step 4: Simplify right side
   16,279.38x = 222,425,378.03
5. Step 5: Solve for x
   x = 222,425,378.03/16,279.38
6. Step 6: Final answer
   x = 13,663.01