Finding the Fourth Proportional to 10,979.40, 16,468.74 and 4,403.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,979.40 : 16,468.74 = 4,403.82 : x
2. Step 2: Convert to fraction form
   10,979.40/16,468.74 = 4,403.82/x
3. Step 3: Cross multiply
   10,979.40x = 16,468.74 × 4,403.82
4. Step 4: Simplify right side
   10,979.40x = 72,525,366.59
5. Step 5: Solve for x
   x = 72,525,366.59/10,979.40
6. Step 6: Final answer
   x = 6,605.59