Finding the Fourth Proportional to 10,686.75, 14,747.72 and 5,971.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.75 : 14,747.72 = 5,971.47 : x
2. Step 2: Convert to fraction form
   10,686.75/14,747.72 = 5,971.47/x
3. Step 3: Cross multiply
   10,686.75x = 14,747.72 × 5,971.47
4. Step 4: Simplify right side
   10,686.75x = 88,065,537.69
5. Step 5: Solve for x
   x = 88,065,537.69/10,686.75
6. Step 6: Final answer
   x = 8,240.63