Finding the Fourth Proportional to 22,839.14, 31,517.83 and 12,767.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,839.14 : 31,517.83 = 12,767.60 : x
2. Step 2: Convert to fraction form
   22,839.14/31,517.83 = 12,767.60/x
3. Step 3: Cross multiply
   22,839.14x = 31,517.83 × 12,767.60
4. Step 4: Simplify right side
   22,839.14x = 402,407,046.31
5. Step 5: Solve for x
   x = 402,407,046.31/22,839.14
6. Step 6: Final answer
   x = 17,619.19