Finding the Fourth Proportional to 10,049.86, 13,865.98 and 5,857.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,049.86 : 13,865.98 = 5,857.30 : x
2. Step 2: Convert to fraction form
   10,049.86/13,865.98 = 5,857.30/x
3. Step 3: Cross multiply
   10,049.86x = 13,865.98 × 5,857.30
4. Step 4: Simplify right side
   10,049.86x = 81,217,204.65
5. Step 5: Solve for x
   x = 81,217,204.65/10,049.86
6. Step 6: Final answer
   x = 8,081.43