Finding the Fourth Proportional to 7,019.46, 9,686.34 and 3,875.85

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.46 : 9,686.34 = 3,875.85 : x
2. Step 2: Convert to fraction form
   7,019.46/9,686.34 = 3,875.85/x
3. Step 3: Cross multiply
   7,019.46x = 9,686.34 × 3,875.85
4. Step 4: Simplify right side
   7,019.46x = 37,542,800.89
5. Step 5: Solve for x
   x = 37,542,800.89/7,019.46
6. Step 6: Final answer
   x = 5,348.39