Finding the Fourth Proportional to 19,179.25, 28,769.24 and 5,328.61

Step by Step Solution

1. Step 1: Write the proportion equation
   19,179.25 : 28,769.24 = 5,328.61 : x
2. Step 2: Convert to fraction form
   19,179.25/28,769.24 = 5,328.61/x
3. Step 3: Cross multiply
   19,179.25x = 28,769.24 × 5,328.61
4. Step 4: Simplify right side
   19,179.25x = 153,300,033.31
5. Step 5: Solve for x
   x = 153,300,033.31/19,179.25
6. Step 6: Final answer
   x = 7,993.02