Finding the Fourth Proportional to 10,649.75, 15,976.83 and 3,629.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,649.75 : 15,976.83 = 3,629.21 : x
2. Step 2: Convert to fraction form
   10,649.75/15,976.83 = 3,629.21/x
3. Step 3: Cross multiply
   10,649.75x = 15,976.83 × 3,629.21
4. Step 4: Simplify right side
   10,649.75x = 57,983,191.32
5. Step 5: Solve for x
   x = 57,983,191.32/10,649.75
6. Step 6: Final answer
   x = 5,444.56