Finding the Fourth Proportional to 10,849.23, 16,273.86 and 8,671.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,849.23 : 16,273.86 = 8,671.78 : x
2. Step 2: Convert to fraction form
   10,849.23/16,273.86 = 8,671.78/x
3. Step 3: Cross multiply
   10,849.23x = 16,273.86 × 8,671.78
4. Step 4: Simplify right side
   10,849.23x = 141,123,333.67
5. Step 5: Solve for x
   x = 141,123,333.67/10,849.23
6. Step 6: Final answer
   x = 13,007.68