Finding the Fourth Proportional to 10,434.98, 15,640.32 and 3,854.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.98 : 15,640.32 = 3,854.54 : x
2. Step 2: Convert to fraction form
   10,434.98/15,640.32 = 3,854.54/x
3. Step 3: Cross multiply
   10,434.98x = 15,640.32 × 3,854.54
4. Step 4: Simplify right side
   10,434.98x = 60,286,239.05
5. Step 5: Solve for x
   x = 60,286,239.05/10,434.98
6. Step 6: Final answer
   x = 5,777.32