Finding the Fourth Proportional to 16,978.41, 23,426.55 and 10,262.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978.41 : 23,426.55 = 10,262.70 : x
2. Step 2: Convert to fraction form
   16,978.41/23,426.55 = 10,262.70/x
3. Step 3: Cross multiply
   16,978.41x = 23,426.55 × 10,262.70
4. Step 4: Simplify right side
   16,978.41x = 240,419,654.69
5. Step 5: Solve for x
   x = 240,419,654.69/16,978.41
6. Step 6: Final answer
   x = 14,160.32