Finding the Fourth Proportional to 10,825.89, 14,939.70 and 5,857.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,825.89 : 14,939.70 = 5,857.89 : x
2. Step 2: Convert to fraction form
   10,825.89/14,939.70 = 5,857.89/x
3. Step 3: Cross multiply
   10,825.89x = 14,939.70 × 5,857.89
4. Step 4: Simplify right side
   10,825.89x = 87,515,119.23
5. Step 5: Solve for x
   x = 87,515,119.23/10,825.89
6. Step 6: Final answer
   x = 8,083.87