Finding the Fourth Proportional to 9,123.05, 13,675.53 and 3,859.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.05 : 13,675.53 = 3,859.49 : x
2. Step 2: Convert to fraction form
   9,123.05/13,675.53 = 3,859.49/x
3. Step 3: Cross multiply
   9,123.05x = 13,675.53 × 3,859.49
4. Step 4: Simplify right side
   9,123.05x = 52,780,571.28
5. Step 5: Solve for x
   x = 52,780,571.28/9,123.05
6. Step 6: Final answer
   x = 5,785.41