Finding the Fourth Proportional to 7,019.68, 9,687.16 and 3,875.87

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.68 : 9,687.16 = 3,875.87 : x
2. Step 2: Convert to fraction form
   7,019.68/9,687.16 = 3,875.87/x
3. Step 3: Cross multiply
   7,019.68x = 9,687.16 × 3,875.87
4. Step 4: Simplify right side
   7,019.68x = 37,546,172.83
5. Step 5: Solve for x
   x = 37,546,172.83/7,019.68
6. Step 6: Final answer
   x = 5,348.70