Finding the Fourth Proportional to 16,305.72, 24,412.20 and 10,742.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,305.72 : 24,412.20 = 10,742.28 : x
2. Step 2: Convert to fraction form
   16,305.72/24,412.20 = 10,742.28/x
3. Step 3: Cross multiply
   16,305.72x = 24,412.20 × 10,742.28
4. Step 4: Simplify right side
   16,305.72x = 262,242,687.82
5. Step 5: Solve for x
   x = 262,242,687.82/16,305.72
6. Step 6: Final answer
   x = 16,082.86