Finding the Fourth Proportional to 10,679.53, 16,015.83 and 3,561.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,679.53 : 16,015.83 = 3,561.88 : x
2. Step 2: Convert to fraction form
   10,679.53/16,015.83 = 3,561.88/x
3. Step 3: Cross multiply
   10,679.53x = 16,015.83 × 3,561.88
4. Step 4: Simplify right side
   10,679.53x = 57,046,464.56
5. Step 5: Solve for x
   x = 57,046,464.56/10,679.53
6. Step 6: Final answer
   x = 5,341.66