Finding the Fourth Proportional to 10,671.72, 14,726.81 and 5,891.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,671.72 : 14,726.81 = 5,891.71 : x
2. Step 2: Convert to fraction form
   10,671.72/14,726.81 = 5,891.71/x
3. Step 3: Cross multiply
   10,671.72x = 14,726.81 × 5,891.71
4. Step 4: Simplify right side
   10,671.72x = 86,766,140.69
5. Step 5: Solve for x
   x = 86,766,140.69/10,671.72
6. Step 6: Final answer
   x = 8,130.47