Finding the Fourth Proportional to 10,979.30, 16,464.15 and 4,403.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,979.30 : 16,464.15 = 4,403.30 : x
2. Step 2: Convert to fraction form
   10,979.30/16,464.15 = 4,403.30/x
3. Step 3: Cross multiply
   10,979.30x = 16,464.15 × 4,403.30
4. Step 4: Simplify right side
   10,979.30x = 72,496,591.70
5. Step 5: Solve for x
   x = 72,496,591.70/10,979.30
6. Step 6: Final answer
   x = 6,603.02