Finding the Fourth Proportional to 6,475.82, 8,937.42 and 3,643.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,475.82 : 8,937.42 = 3,643.31 : x
2. Step 2: Convert to fraction form
   6,475.82/8,937.42 = 3,643.31/x
3. Step 3: Cross multiply
   6,475.82x = 8,937.42 × 3,643.31
4. Step 4: Simplify right side
   6,475.82x = 32,561,791.66
5. Step 5: Solve for x
   x = 32,561,791.66/6,475.82
6. Step 6: Final answer
   x = 5,028.21