Finding the Fourth Proportional to 7,019.73, 9,687.20 and 3,875.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.73 : 9,687.20 = 3,875.92 : x
2. Step 2: Convert to fraction form
   7,019.73/9,687.20 = 3,875.92/x
3. Step 3: Cross multiply
   7,019.73x = 9,687.20 × 3,875.92
4. Step 4: Simplify right side
   7,019.73x = 37,546,768.63
5. Step 5: Solve for x
   x = 37,546,768.63/7,019.73
6. Step 6: Final answer
   x = 5,348.75