Finding the Fourth Proportional to 10,245.30, 15,367.34 and 3,581.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.30 : 15,367.34 = 3,581.33 : x
2. Step 2: Convert to fraction form
   10,245.30/15,367.34 = 3,581.33/x
3. Step 3: Cross multiply
   10,245.30x = 15,367.34 × 3,581.33
4. Step 4: Simplify right side
   10,245.30x = 55,035,515.76
5. Step 5: Solve for x
   x = 55,035,515.76/10,245.30
6. Step 6: Final answer
   x = 5,371.78