Finding the Fourth Proportional to 6,689.96, 10,025.82 and 3,910.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,689.96 : 10,025.82 = 3,910.76 : x
2. Step 2: Convert to fraction form
   6,689.96/10,025.82 = 3,910.76/x
3. Step 3: Cross multiply
   6,689.96x = 10,025.82 × 3,910.76
4. Step 4: Simplify right side
   6,689.96x = 39,208,575.82
5. Step 5: Solve for x
   x = 39,208,575.82/6,689.96
6. Step 6: Final answer
   x = 5,860.81