Finding the Fourth Proportional to 11,018.57, 16,524.34 and 3,621.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,018.57 : 16,524.34 = 3,621.29 : x
2. Step 2: Convert to fraction form
   11,018.57/16,524.34 = 3,621.29/x
3. Step 3: Cross multiply
   11,018.57x = 16,524.34 × 3,621.29
4. Step 4: Simplify right side
   11,018.57x = 59,839,335.52
5. Step 5: Solve for x
   x = 59,839,335.52/11,018.57
6. Step 6: Final answer
   x = 5,430.77