Finding the Fourth Proportional to 5,019.57, 7,567.86 and 4,680.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,019.57 : 7,567.86 = 4,680.80 : x
2. Step 2: Convert to fraction form
   5,019.57/7,567.86 = 4,680.80/x
3. Step 3: Cross multiply
   5,019.57x = 7,567.86 × 4,680.80
4. Step 4: Simplify right side
   5,019.57x = 35,423,601.25
5. Step 5: Solve for x
   x = 35,423,601.25/5,019.57
6. Step 6: Final answer
   x = 7,057.10