Finding the Fourth Proportional to 3,895.30, 5,815.22 and 3,758.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.30 : 5,815.22 = 3,758.62 : x
2. Step 2: Convert to fraction form
   3,895.30/5,815.22 = 3,758.62/x
3. Step 3: Cross multiply
   3,895.30x = 5,815.22 × 3,758.62
4. Step 4: Simplify right side
   3,895.30x = 21,857,202.20
5. Step 5: Solve for x
   x = 21,857,202.20/3,895.30
6. Step 6: Final answer
   x = 5,611.17