Finding the Fourth Proportional to 10,638.81, 14,680.97 and 5,857.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,638.81 : 14,680.97 = 5,857.82 : x
2. Step 2: Convert to fraction form
   10,638.81/14,680.97 = 5,857.82/x
3. Step 3: Cross multiply
   10,638.81x = 14,680.97 × 5,857.82
4. Step 4: Simplify right side
   10,638.81x = 85,998,479.69
5. Step 5: Solve for x
   x = 85,998,479.69/10,638.81
6. Step 6: Final answer
   x = 8,083.47