Finding the Fourth Proportional to 22,839.93, 31,519.27 and 12,768.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,839.93 : 31,519.27 = 12,768.78 : x
2. Step 2: Convert to fraction form
   22,839.93/31,519.27 = 12,768.78/x
3. Step 3: Cross multiply
   22,839.93x = 31,519.27 × 12,768.78
4. Step 4: Simplify right side
   22,839.93x = 402,462,466.79
5. Step 5: Solve for x
   x = 402,462,466.79/22,839.93
6. Step 6: Final answer
   x = 17,621.01