Finding the Fourth Proportional to 6,899.46, 10,351.71 and 3,389.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,899.46 : 10,351.71 = 3,389.10 : x
2. Step 2: Convert to fraction form
   6,899.46/10,351.71 = 3,389.10/x
3. Step 3: Cross multiply
   6,899.46x = 10,351.71 × 3,389.10
4. Step 4: Simplify right side
   6,899.46x = 35,082,980.36
5. Step 5: Solve for x
   x = 35,082,980.36/6,899.46
6. Step 6: Final answer
   x = 5,084.89