Finding the Fourth Proportional to 5,643.31, 8,450.37 and 3,893.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,643.31 : 8,450.37 = 3,893.71 : x
2. Step 2: Convert to fraction form
   5,643.31/8,450.37 = 3,893.71/x
3. Step 3: Cross multiply
   5,643.31x = 8,450.37 × 3,893.71
4. Step 4: Simplify right side
   5,643.31x = 32,903,290.17
5. Step 5: Solve for x
   x = 32,903,290.17/5,643.31
6. Step 6: Final answer
   x = 5,830.49