Finding the Fourth Proportional to 6,789.21, 10,175.31 and 3,669.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,789.21 : 10,175.31 = 3,669.09 : x
2. Step 2: Convert to fraction form
   6,789.21/10,175.31 = 3,669.09/x
3. Step 3: Cross multiply
   6,789.21x = 10,175.31 × 3,669.09
4. Step 4: Simplify right side
   6,789.21x = 37,334,128.17
5. Step 5: Solve for x
   x = 37,334,128.17/6,789.21
6. Step 6: Final answer
   x = 5,499.04