Finding the Fourth Proportional to 19,215.59, 28,632.37 and 17,119.49

Step by Step Solution

1. Step 1: Write the proportion equation
   19,215.59 : 28,632.37 = 17,119.49 : x
2. Step 2: Convert to fraction form
   19,215.59/28,632.37 = 17,119.49/x
3. Step 3: Cross multiply
   19,215.59x = 28,632.37 × 17,119.49
4. Step 4: Simplify right side
   19,215.59x = 490,171,571.89
5. Step 5: Solve for x
   x = 490,171,571.89/19,215.59
6. Step 6: Final answer
   x = 25,509.06