Finding the Fourth Proportional to 11,182.21, 16,775.37 and 3,686.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,182.21 : 16,775.37 = 3,686.20 : x
2. Step 2: Convert to fraction form
   11,182.21/16,775.37 = 3,686.20/x
3. Step 3: Cross multiply
   11,182.21x = 16,775.37 × 3,686.20
4. Step 4: Simplify right side
   11,182.21x = 61,837,368.89
5. Step 5: Solve for x
   x = 61,837,368.89/11,182.21
6. Step 6: Final answer
   x = 5,529.98