Finding the Fourth Proportional to 10,671.21, 14,726.27 and 5,891.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,671.21 : 14,726.27 = 5,891.15 : x
2. Step 2: Convert to fraction form
   10,671.21/14,726.27 = 5,891.15/x
3. Step 3: Cross multiply
   10,671.21x = 14,726.27 × 5,891.15
4. Step 4: Simplify right side
   10,671.21x = 86,754,665.51
5. Step 5: Solve for x
   x = 86,754,665.51/10,671.21
6. Step 6: Final answer
   x = 8,129.79