Finding the Fourth Proportional to 10,417.82, 15,615.78 and 3,839.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,417.82 : 15,615.78 = 3,839.80 : x
2. Step 2: Convert to fraction form
   10,417.82/15,615.78 = 3,839.80/x
3. Step 3: Cross multiply
   10,417.82x = 15,615.78 × 3,839.80
4. Step 4: Simplify right side
   10,417.82x = 59,961,472.04
5. Step 5: Solve for x
   x = 59,961,472.04/10,417.82
6. Step 6: Final answer
   x = 5,755.66