Finding the Fourth Proportional to 12,687.33, 19,033.73 and 5,292.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,687.33 : 19,033.73 = 5,292.54 : x
2. Step 2: Convert to fraction form
   12,687.33/19,033.73 = 5,292.54/x
3. Step 3: Cross multiply
   12,687.33x = 19,033.73 × 5,292.54
4. Step 4: Simplify right side
   12,687.33x = 100,736,800.53
5. Step 5: Solve for x
   x = 100,736,800.53/12,687.33
6. Step 6: Final answer
   x = 7,939.95