Finding the Fourth Proportional to 6,890.40, 10,323.45 and 5,651.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,890.40 : 10,323.45 = 5,651.10 : x
2. Step 2: Convert to fraction form
   6,890.40/10,323.45 = 5,651.10/x
3. Step 3: Cross multiply
   6,890.40x = 10,323.45 × 5,651.10
4. Step 4: Simplify right side
   6,890.40x = 58,338,848.30
5. Step 5: Solve for x
   x = 58,338,848.30/6,890.40
6. Step 6: Final answer
   x = 8,466.69