Finding the Fourth Proportional to 9,405.45, 14,111.10 and 3,859.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,405.45 : 14,111.10 = 3,859.25 : x
2. Step 2: Convert to fraction form
   9,405.45/14,111.10 = 3,859.25/x
3. Step 3: Cross multiply
   9,405.45x = 14,111.10 × 3,859.25
4. Step 4: Simplify right side
   9,405.45x = 54,458,192.12
5. Step 5: Solve for x
   x = 54,458,192.12/9,405.45
6. Step 6: Final answer
   x = 5,790.07