Finding the Fourth Proportional to 10,439.34, 15,649.02 and 3,863.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,439.34 : 15,649.02 = 3,863.76 : x
2. Step 2: Convert to fraction form
   10,439.34/15,649.02 = 3,863.76/x
3. Step 3: Cross multiply
   10,439.34x = 15,649.02 × 3,863.76
4. Step 4: Simplify right side
   10,439.34x = 60,464,057.52
5. Step 5: Solve for x
   x = 60,464,057.52/10,439.34
6. Step 6: Final answer
   x = 5,791.94