Finding the Fourth Proportional to 6,689.34, 9,231.81 and 3,705.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,689.34 : 9,231.81 = 3,705.46 : x
2. Step 2: Convert to fraction form
   6,689.34/9,231.81 = 3,705.46/x
3. Step 3: Cross multiply
   6,689.34x = 9,231.81 × 3,705.46
4. Step 4: Simplify right side
   6,689.34x = 34,208,079.60
5. Step 5: Solve for x
   x = 34,208,079.60/6,689.34
6. Step 6: Final answer
   x = 5,113.82