Finding the Fourth Proportional to 17,978.22, 26,951.37 and 9,662.70

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.22 : 26,951.37 = 9,662.70 : x
2. Step 2: Convert to fraction form
   17,978.22/26,951.37 = 9,662.70/x
3. Step 3: Cross multiply
   17,978.22x = 26,951.37 × 9,662.70
4. Step 4: Simplify right side
   17,978.22x = 260,423,002.90
5. Step 5: Solve for x
   x = 260,423,002.90/17,978.22
6. Step 6: Final answer
   x = 14,485.47