Finding the Fourth Proportional to 11,017.56, 16,524.54 and 3,621.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,017.56 : 16,524.54 = 3,621.72 : x
2. Step 2: Convert to fraction form
   11,017.56/16,524.54 = 3,621.72/x
3. Step 3: Cross multiply
   11,017.56x = 16,524.54 × 3,621.72
4. Step 4: Simplify right side
   11,017.56x = 59,847,257.01
5. Step 5: Solve for x
   x = 59,847,257.01/11,017.56
6. Step 6: Final answer
   x = 5,431.99