Finding the Fourth Proportional to 11,005.02, 16,511.34 and 3,610.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005.02 : 16,511.34 = 3,610.80 : x
2. Step 2: Convert to fraction form
   11,005.02/16,511.34 = 3,610.80/x
3. Step 3: Cross multiply
   11,005.02x = 16,511.34 × 3,610.80
4. Step 4: Simplify right side
   11,005.02x = 59,619,146.47
5. Step 5: Solve for x
   x = 59,619,146.47/11,005.02
6. Step 6: Final answer
   x = 5,417.45