Finding the Fourth Proportional to 11,003.55, 16,501.86 and 3,606.36

Step by Step Solution

1. Step 1: Write the proportion equation
   11,003.55 : 16,501.86 = 3,606.36 : x
2. Step 2: Convert to fraction form
   11,003.55/16,501.86 = 3,606.36/x
3. Step 3: Cross multiply
   11,003.55x = 16,501.86 × 3,606.36
4. Step 4: Simplify right side
   11,003.55x = 59,511,647.83
5. Step 5: Solve for x
   x = 59,511,647.83/11,003.55
6. Step 6: Final answer
   x = 5,408.40