Finding the Fourth Proportional to 6,646.88, 9,172.88 and 3,662.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,646.88 : 9,172.88 = 3,662.88 : x
2. Step 2: Convert to fraction form
   6,646.88/9,172.88 = 3,662.88/x
3. Step 3: Cross multiply
   6,646.88x = 9,172.88 × 3,662.88
4. Step 4: Simplify right side
   6,646.88x = 33,599,158.69
5. Step 5: Solve for x
   x = 33,599,158.69/6,646.88
6. Step 6: Final answer
   x = 5,054.88