Finding the Fourth Proportional to 6,646.88, 9,172.69 and 3,662.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,646.88 : 9,172.69 = 3,662.69 : x
2. Step 2: Convert to fraction form
   6,646.88/9,172.69 = 3,662.69/x
3. Step 3: Cross multiply
   6,646.88x = 9,172.69 × 3,662.69
4. Step 4: Simplify right side
   6,646.88x = 33,596,685.52
5. Step 5: Solve for x
   x = 33,596,685.52/6,646.88
6. Step 6: Final answer
   x = 5,054.51