Finding the Fourth Proportional to 5,144.95, 7,099.61 and 3,020.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,144.95 : 7,099.61 = 3,020.25 : x
2. Step 2: Convert to fraction form
   5,144.95/7,099.61 = 3,020.25/x
3. Step 3: Cross multiply
   5,144.95x = 7,099.61 × 3,020.25
4. Step 4: Simplify right side
   5,144.95x = 21,442,597.10
5. Step 5: Solve for x
   x = 21,442,597.10/5,144.95
6. Step 6: Final answer
   x = 4,167.70