Finding the Fourth Proportional to 7,019.81, 9,687.31 and 3,875.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.81 : 9,687.31 = 3,875.98 : x
2. Step 2: Convert to fraction form
   7,019.81/9,687.31 = 3,875.98/x
3. Step 3: Cross multiply
   7,019.81x = 9,687.31 × 3,875.98
4. Step 4: Simplify right side
   7,019.81x = 37,547,752.00
5. Step 5: Solve for x
   x = 37,547,752.00/7,019.81
6. Step 6: Final answer
   x = 5,348.83