Finding the Fourth Proportional to 22,904.50, 31,608.22 and 12,968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,904.50 : 31,608.22 = 12,968.50 : x
2. Step 2: Convert to fraction form
   22,904.50/31,608.22 = 12,968.50/x
3. Step 3: Cross multiply
   22,904.50x = 31,608.22 × 12,968.50
4. Step 4: Simplify right side
   22,904.50x = 409,911,201.07
5. Step 5: Solve for x
   x = 409,911,201.07/22,904.50
6. Step 6: Final answer
   x = 17,896.54