Finding the Fourth Proportional to 7,019.30, 9,686.63 and 3,875.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.30 : 9,686.63 = 3,875.49 : x
2. Step 2: Convert to fraction form
   7,019.30/9,686.63 = 3,875.49/x
3. Step 3: Cross multiply
   7,019.30x = 9,686.63 × 3,875.49
4. Step 4: Simplify right side
   7,019.30x = 37,540,447.39
5. Step 5: Solve for x
   x = 37,540,447.39/7,019.30
6. Step 6: Final answer
   x = 5,348.17