Finding the Fourth Proportional to 7,019.51, 9,686.79 and 3,875.63

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.51 : 9,686.79 = 3,875.63 : x
2. Step 2: Convert to fraction form
   7,019.51/9,686.79 = 3,875.63/x
3. Step 3: Cross multiply
   7,019.51x = 9,686.79 × 3,875.63
4. Step 4: Simplify right side
   7,019.51x = 37,542,365.49
5. Step 5: Solve for x
   x = 37,542,365.49/7,019.51
6. Step 6: Final answer
   x = 5,348.29