Finding the Fourth Proportional to 5,179.06, 7,144.82 and 3,499.85

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179.06 : 7,144.82 = 3,499.85 : x
2. Step 2: Convert to fraction form
   5,179.06/7,144.82 = 3,499.85/x
3. Step 3: Cross multiply
   5,179.06x = 7,144.82 × 3,499.85
4. Step 4: Simplify right side
   5,179.06x = 25,005,824.89
5. Step 5: Solve for x
   x = 25,005,824.89/5,179.06
6. Step 6: Final answer
   x = 4,828.26