Finding the Fourth Proportional to 11,052.21, 16,580.81 and 3,656.65

Step by Step Solution

1. Step 1: Write the proportion equation
   11,052.21 : 16,580.81 = 3,656.65 : x
2. Step 2: Convert to fraction form
   11,052.21/16,580.81 = 3,656.65/x
3. Step 3: Cross multiply
   11,052.21x = 16,580.81 × 3,656.65
4. Step 4: Simplify right side
   11,052.21x = 60,630,218.89
5. Step 5: Solve for x
   x = 60,630,218.89/11,052.21
6. Step 6: Final answer
   x = 5,485.80