Finding the Fourth Proportional to 16,440.81, 24,667.41 and 9,871.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,440.81 : 24,667.41 = 9,871.56 : x
2. Step 2: Convert to fraction form
   16,440.81/24,667.41 = 9,871.56/x
3. Step 3: Cross multiply
   16,440.81x = 24,667.41 × 9,871.56
4. Step 4: Simplify right side
   16,440.81x = 243,505,817.86
5. Step 5: Solve for x
   x = 243,505,817.86/16,440.81
6. Step 6: Final answer
   x = 14,811.06