Finding the Fourth Proportional to 22,017.80, 30,386.61 and 12,584.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,017.80 : 30,386.61 = 12,584.54 : x
2. Step 2: Convert to fraction form
   22,017.80/30,386.61 = 12,584.54/x
3. Step 3: Cross multiply
   22,017.80x = 30,386.61 × 12,584.54
4. Step 4: Simplify right side
   22,017.80x = 382,401,584.98
5. Step 5: Solve for x
   x = 382,401,584.98/22,017.80
6. Step 6: Final answer
   x = 17,367.84