Finding the Fourth Proportional to 22,968.72, 31,695.78 and 12,896.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,968.72 : 31,695.78 = 12,896.98 : x
2. Step 2: Convert to fraction form
   22,968.72/31,695.78 = 12,896.98/x
3. Step 3: Cross multiply
   22,968.72x = 31,695.78 × 12,896.98
4. Step 4: Simplify right side
   22,968.72x = 408,779,840.74
5. Step 5: Solve for x
   x = 408,779,840.74/22,968.72
6. Step 6: Final answer
   x = 17,797.24