Finding the Fourth Proportional to 3,885.43, 5,830.59 and 3,636.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,885.43 : 5,830.59 = 3,636.37 : x
2. Step 2: Convert to fraction form
   3,885.43/5,830.59 = 3,636.37/x
3. Step 3: Cross multiply
   3,885.43x = 5,830.59 × 3,636.37
4. Step 4: Simplify right side
   3,885.43x = 21,202,182.56
5. Step 5: Solve for x
   x = 21,202,182.56/3,885.43
6. Step 6: Final answer
   x = 5,456.84