Finding the Fourth Proportional to 17,443.28, 24,072.36 and 9,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,443.28 : 24,072.36 = 9,992.72 : x
2. Step 2: Convert to fraction form
   17,443.28/24,072.36 = 9,992.72/x
3. Step 3: Cross multiply
   17,443.28x = 24,072.36 × 9,992.72
4. Step 4: Simplify right side
   17,443.28x = 240,548,353.22
5. Step 5: Solve for x
   x = 240,548,353.22/17,443.28
6. Step 6: Final answer
   x = 13,790.32