Finding the Fourth Proportional to 6,885.38, 10,316.72 and 3,966.14

Step by Step Solution

1. Step 1: Write the proportion equation
   6,885.38 : 10,316.72 = 3,966.14 : x
2. Step 2: Convert to fraction form
   6,885.38/10,316.72 = 3,966.14/x
3. Step 3: Cross multiply
   6,885.38x = 10,316.72 × 3,966.14
4. Step 4: Simplify right side
   6,885.38x = 40,917,555.86
5. Step 5: Solve for x
   x = 40,917,555.86/6,885.38
6. Step 6: Final answer
   x = 5,942.67