Finding the Fourth Proportional to 7,019.31, 9,686.62 and 3,875.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.31 : 9,686.62 = 3,875.48 : x
2. Step 2: Convert to fraction form
   7,019.31/9,686.62 = 3,875.48/x
3. Step 3: Cross multiply
   7,019.31x = 9,686.62 × 3,875.48
4. Step 4: Simplify right side
   7,019.31x = 37,540,234.27
5. Step 5: Solve for x
   x = 37,540,234.27/7,019.31
6. Step 6: Final answer
   x = 5,348.14