Finding the Fourth Proportional to 7,019.39, 9,686.50 and 3,875.51

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.39 : 9,686.50 = 3,875.51 : x
2. Step 2: Convert to fraction form
   7,019.39/9,686.50 = 3,875.51/x
3. Step 3: Cross multiply
   7,019.39x = 9,686.50 × 3,875.51
4. Step 4: Simplify right side
   7,019.39x = 37,540,059.80
5. Step 5: Solve for x
   x = 37,540,059.80/7,019.39
6. Step 6: Final answer
   x = 5,348.06