Finding the Fourth Proportional to 10,686.42, 14,747.94 and 5,971.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.42 : 14,747.94 = 5,971.05 : x
2. Step 2: Convert to fraction form
   10,686.42/14,747.94 = 5,971.05/x
3. Step 3: Cross multiply
   10,686.42x = 14,747.94 × 5,971.05
4. Step 4: Simplify right side
   10,686.42x = 88,060,687.14
5. Step 5: Solve for x
   x = 88,060,687.14/10,686.42
6. Step 6: Final answer
   x = 8,240.43