Finding the Fourth Proportional to 5,179.58, 7,148.42 and 3,083.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179.58 : 7,148.42 = 3,083.72 : x
2. Step 2: Convert to fraction form
   5,179.58/7,148.42 = 3,083.72/x
3. Step 3: Cross multiply
   5,179.58x = 7,148.42 × 3,083.72
4. Step 4: Simplify right side
   5,179.58x = 22,043,725.72
5. Step 5: Solve for x
   x = 22,043,725.72/5,179.58
6. Step 6: Final answer
   x = 4,255.89