Finding the Fourth Proportional to 10,454.92, 14,429.09 and 5,978.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,454.92 : 14,429.09 = 5,978.05 : x
2. Step 2: Convert to fraction form
   10,454.92/14,429.09 = 5,978.05/x
3. Step 3: Cross multiply
   10,454.92x = 14,429.09 × 5,978.05
4. Step 4: Simplify right side
   10,454.92x = 86,257,821.47
5. Step 5: Solve for x
   x = 86,257,821.47/10,454.92
6. Step 6: Final answer
   x = 8,250.45