Finding the Fourth Proportional to 10,435.98, 15,641.82 and 3,855.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,435.98 : 15,641.82 = 3,855.54 : x
2. Step 2: Convert to fraction form
   10,435.98/15,641.82 = 3,855.54/x
3. Step 3: Cross multiply
   10,435.98x = 15,641.82 × 3,855.54
4. Step 4: Simplify right side
   10,435.98x = 60,307,662.68
5. Step 5: Solve for x
   x = 60,307,662.68/10,435.98
6. Step 6: Final answer
   x = 5,778.82