Finding the Fourth Proportional to 10,456.82, 14,428.71 and 5,979.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,456.82 : 14,428.71 = 5,979.85 : x
2. Step 2: Convert to fraction form
   10,456.82/14,428.71 = 5,979.85/x
3. Step 3: Cross multiply
   10,456.82x = 14,428.71 × 5,979.85
4. Step 4: Simplify right side
   10,456.82x = 86,281,521.49
5. Step 5: Solve for x
   x = 86,281,521.49/10,456.82
6. Step 6: Final answer
   x = 8,251.22