Finding the Fourth Proportional to 10,629.50, 15,944.79 and 3,609.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,629.50 : 15,944.79 = 3,609.74 : x
2. Step 2: Convert to fraction form
   10,629.50/15,944.79 = 3,609.74/x
3. Step 3: Cross multiply
   10,629.50x = 15,944.79 × 3,609.74
4. Step 4: Simplify right side
   10,629.50x = 57,556,466.53
5. Step 5: Solve for x
   x = 57,556,466.53/10,629.50
6. Step 6: Final answer
   x = 5,414.79