Finding the Fourth Proportional to 10,844.33, 14,964.57 and 6,128.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,844.33 : 14,964.57 = 6,128.30 : x
2. Step 2: Convert to fraction form
   10,844.33/14,964.57 = 6,128.30/x
3. Step 3: Cross multiply
   10,844.33x = 14,964.57 × 6,128.30
4. Step 4: Simplify right side
   10,844.33x = 91,707,411.74
5. Step 5: Solve for x
   x = 91,707,411.74/10,844.33
6. Step 6: Final answer
   x = 8,456.72