Finding the Fourth Proportional to 17,915.31, 24,723.23 and 9,958.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,915.31 : 24,723.23 = 9,958.28 : x
2. Step 2: Convert to fraction form
   17,915.31/24,723.23 = 9,958.28/x
3. Step 3: Cross multiply
   17,915.31x = 24,723.23 × 9,958.28
4. Step 4: Simplify right side
   17,915.31x = 246,200,673.44
5. Step 5: Solve for x
   x = 246,200,673.44/17,915.31
6. Step 6: Final answer
   x = 13,742.47