Finding the Fourth Proportional to 22,428.24, 30,951.72 and 12,357.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,428.24 : 30,951.72 = 12,357.84 : x
2. Step 2: Convert to fraction form
   22,428.24/30,951.72 = 12,357.84/x
3. Step 3: Cross multiply
   22,428.24x = 30,951.72 × 12,357.84
4. Step 4: Simplify right side
   22,428.24x = 382,496,403.48
5. Step 5: Solve for x
   x = 382,496,403.48/22,428.24
6. Step 6: Final answer
   x = 17,054.23