Finding the Fourth Proportional to 10,258.09, 14,168.42 and 7,286.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,258.09 : 14,168.42 = 7,286.81 : x
2. Step 2: Convert to fraction form
   10,258.09/14,168.42 = 7,286.81/x
3. Step 3: Cross multiply
   10,258.09x = 14,168.42 × 7,286.81
4. Step 4: Simplify right side
   10,258.09x = 103,242,584.54
5. Step 5: Solve for x
   x = 103,242,584.54/10,258.09
6. Step 6: Final answer
   x = 10,064.50