Finding the Fourth Proportional to 22,019.94, 30,376.22 and 13,939.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,019.94 : 30,376.22 = 13,939.89 : x
2. Step 2: Convert to fraction form
   22,019.94/30,376.22 = 13,939.89/x
3. Step 3: Cross multiply
   22,019.94x = 30,376.22 × 13,939.89
4. Step 4: Simplify right side
   22,019.94x = 423,441,095.72
5. Step 5: Solve for x
   x = 423,441,095.72/22,019.94
6. Step 6: Final answer
   x = 19,229.89