Finding the Fourth Proportional to 7,019.21, 9,686.49 and 3,875.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.21 : 9,686.49 = 3,875.38 : x
2. Step 2: Convert to fraction form
   7,019.21/9,686.49 = 3,875.38/x
3. Step 3: Cross multiply
   7,019.21x = 9,686.49 × 3,875.38
4. Step 4: Simplify right side
   7,019.21x = 37,538,829.62
5. Step 5: Solve for x
   x = 37,538,829.62/7,019.21
6. Step 6: Final answer
   x = 5,348.01