Finding the Fourth Proportional to 19,241.52, 28,863.98 and 5,390.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,241.52 : 28,863.98 = 5,390.56 : x
2. Step 2: Convert to fraction form
   19,241.52/28,863.98 = 5,390.56/x
3. Step 3: Cross multiply
   19,241.52x = 28,863.98 × 5,390.56
4. Step 4: Simplify right side
   19,241.52x = 155,593,016.03
5. Step 5: Solve for x
   x = 155,593,016.03/19,241.52
6. Step 6: Final answer
   x = 8,086.32