Finding the Fourth Proportional to 10,980.20, 16,469.78 and 3,583.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,980.20 : 16,469.78 = 3,583.69 : x
2. Step 2: Convert to fraction form
   10,980.20/16,469.78 = 3,583.69/x
3. Step 3: Cross multiply
   10,980.20x = 16,469.78 × 3,583.69
4. Step 4: Simplify right side
   10,980.20x = 59,022,526.80
5. Step 5: Solve for x
   x = 59,022,526.80/10,980.20
6. Step 6: Final answer
   x = 5,375.36