Finding the Fourth Proportional to 10,671.42, 14,727.43 and 5,891.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,671.42 : 14,727.43 = 5,891.80 : x
2. Step 2: Convert to fraction form
   10,671.42/14,727.43 = 5,891.80/x
3. Step 3: Cross multiply
   10,671.42x = 14,727.43 × 5,891.80
4. Step 4: Simplify right side
   10,671.42x = 86,771,099.23
5. Step 5: Solve for x
   x = 86,771,099.23/10,671.42
6. Step 6: Final answer
   x = 8,131.17