Finding the Fourth Proportional to 11,258.76, 16,869.69 and 3,859.23

Step by Step Solution

1. Step 1: Write the proportion equation
   11,258.76 : 16,869.69 = 3,859.23 : x
2. Step 2: Convert to fraction form
   11,258.76/16,869.69 = 3,859.23/x
3. Step 3: Cross multiply
   11,258.76x = 16,869.69 × 3,859.23
4. Step 4: Simplify right side
   11,258.76x = 65,104,013.74
5. Step 5: Solve for x
   x = 65,104,013.74/11,258.76
6. Step 6: Final answer
   x = 5,782.52