Finding the Fourth Proportional to 22,443.19, 30,962.93 and 12,879.63

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.19 : 30,962.93 = 12,879.63 : x
2. Step 2: Convert to fraction form
   22,443.19/30,962.93 = 12,879.63/x
3. Step 3: Cross multiply
   22,443.19x = 30,962.93 × 12,879.63
4. Step 4: Simplify right side
   22,443.19x = 398,791,017.72
5. Step 5: Solve for x
   x = 398,791,017.72/22,443.19
6. Step 6: Final answer
   x = 17,768.91