Finding the Fourth Proportional to 11,279.59, 16,914.72 and 4,258.41

Step by Step Solution

1. Step 1: Write the proportion equation
   11,279.59 : 16,914.72 = 4,258.41 : x
2. Step 2: Convert to fraction form
   11,279.59/16,914.72 = 4,258.41/x
3. Step 3: Cross multiply
   11,279.59x = 16,914.72 × 4,258.41
4. Step 4: Simplify right side
   11,279.59x = 72,029,765.33
5. Step 5: Solve for x
   x = 72,029,765.33/11,279.59
6. Step 6: Final answer
   x = 6,385.85