Finding the Fourth Proportional to 17,912.72, 24,719.10 and 9,955.64

Step by Step Solution

1. Step 1: Write the proportion equation
   17,912.72 : 24,719.10 = 9,955.64 : x
2. Step 2: Convert to fraction form
   17,912.72/24,719.10 = 9,955.64/x
3. Step 3: Cross multiply
   17,912.72x = 24,719.10 × 9,955.64
4. Step 4: Simplify right side
   17,912.72x = 246,094,460.72
5. Step 5: Solve for x
   x = 246,094,460.72/17,912.72
6. Step 6: Final answer
   x = 13,738.53