Finding the Fourth Proportional to 22,839.92, 31,519.18 and 12,768.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,839.92 : 31,519.18 = 12,768.76 : x
2. Step 2: Convert to fraction form
   22,839.92/31,519.18 = 12,768.76/x
3. Step 3: Cross multiply
   22,839.92x = 31,519.18 × 12,768.76
4. Step 4: Simplify right side
   22,839.92x = 402,460,844.82
5. Step 5: Solve for x
   x = 402,460,844.82/22,839.92
6. Step 6: Final answer
   x = 17,620.94