Finding the Fourth Proportional to 6,645.89, 9,171.35 and 3,662.00

Step by Step Solution

1. Step 1: Write the proportion equation
   6,645.89 : 9,171.35 = 3,662.00 : x
2. Step 2: Convert to fraction form
   6,645.89/9,171.35 = 3,662.00/x
3. Step 3: Cross multiply
   6,645.89x = 9,171.35 × 3,662.00
4. Step 4: Simplify right side
   6,645.89x = 33,585,419.53
5. Step 5: Solve for x
   x = 33,585,419.53/6,645.89
6. Step 6: Final answer
   x = 5,053.57