Finding the Fourth Proportional to 10,991.54, 16,487.06 and 2,671.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991.54 : 16,487.06 = 2,671.59 : x
2. Step 2: Convert to fraction form
   10,991.54/16,487.06 = 2,671.59/x
3. Step 3: Cross multiply
   10,991.54x = 16,487.06 × 2,671.59
4. Step 4: Simplify right side
   10,991.54x = 44,046,651.27
5. Step 5: Solve for x
   x = 44,046,651.27/10,991.54
6. Step 6: Final answer
   x = 4,007.32