Finding the Fourth Proportional to 16,236.05, 24,353.81 and 5,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,236.05 : 24,353.81 = 5,142.72 : x
2. Step 2: Convert to fraction form
   16,236.05/24,353.81 = 5,142.72/x
3. Step 3: Cross multiply
   16,236.05x = 24,353.81 × 5,142.72
4. Step 4: Simplify right side
   16,236.05x = 125,244,838.62
5. Step 5: Solve for x
   x = 125,244,838.62/16,236.05
6. Step 6: Final answer
   x = 7,714.00