Finding the Fourth Proportional to 22,918.67, 31,627.73 and 12,847.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,918.67 : 31,627.73 = 12,847.12 : x
2. Step 2: Convert to fraction form
   22,918.67/31,627.73 = 12,847.12/x
3. Step 3: Cross multiply
   22,918.67x = 31,627.73 × 12,847.12
4. Step 4: Simplify right side
   22,918.67x = 406,325,185.96
5. Step 5: Solve for x
   x = 406,325,185.96/22,918.67
6. Step 6: Final answer
   x = 17,729.00