Finding the Fourth Proportional to 22,019.84, 30,387.20 and 12,459.65

Step by Step Solution

1. Step 1: Write the proportion equation
   22,019.84 : 30,387.20 = 12,459.65 : x
2. Step 2: Convert to fraction form
   22,019.84/30,387.20 = 12,459.65/x
3. Step 3: Cross multiply
   22,019.84x = 30,387.20 × 12,459.65
4. Step 4: Simplify right side
   22,019.84x = 378,613,662.25
5. Step 5: Solve for x
   x = 378,613,662.25/22,019.84
6. Step 6: Final answer
   x = 17,194.21