Finding the Fourth Proportional to 17,742.72, 24,485.12 and 9,785.24

Step by Step Solution

1. Step 1: Write the proportion equation
   17,742.72 : 24,485.12 = 9,785.24 : x
2. Step 2: Convert to fraction form
   17,742.72/24,485.12 = 9,785.24/x
3. Step 3: Cross multiply
   17,742.72x = 24,485.12 × 9,785.24
4. Step 4: Simplify right side
   17,742.72x = 239,592,604.28
5. Step 5: Solve for x
   x = 239,592,604.28/17,742.72
6. Step 6: Final answer
   x = 13,503.71