Finding the Fourth Proportional to 6,609.86, 9,121.61 and 3,625.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,609.86 : 9,121.61 = 3,625.72 : x
2. Step 2: Convert to fraction form
   6,609.86/9,121.61 = 3,625.72/x
3. Step 3: Cross multiply
   6,609.86x = 9,121.61 × 3,625.72
4. Step 4: Simplify right side
   6,609.86x = 33,072,403.81
5. Step 5: Solve for x
   x = 33,072,403.81/6,609.86
6. Step 6: Final answer
   x = 5,003.50