Finding the Fourth Proportional to 6,890.91, 10,304.82 and 5,137.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,890.91 : 10,304.82 = 5,137.10 : x
2. Step 2: Convert to fraction form
   6,890.91/10,304.82 = 5,137.10/x
3. Step 3: Cross multiply
   6,890.91x = 10,304.82 × 5,137.10
4. Step 4: Simplify right side
   6,890.91x = 52,936,935.91
5. Step 5: Solve for x
   x = 52,936,935.91/6,890.91
6. Step 6: Final answer
   x = 7,682.14