Finding the Fourth Proportional to 17,958.52, 24,779 and 10,404.40

Step by Step Solution

1. Step 1: Write the proportion equation
   17,958.52 : 24,779 = 10,404.40 : x
2. Step 2: Convert to fraction form
   17,958.52/24,779 = 10,404.40/x
3. Step 3: Cross multiply
   17,958.52x = 24,779 × 10,404.40
4. Step 4: Simplify right side
   17,958.52x = 257,810,627.60
5. Step 5: Solve for x
   x = 257,810,627.60/17,958.52
6. Step 6: Final answer
   x = 14,355.90