Finding the Fourth Proportional to 22,692, 31,314.96 and 12,756

Step by Step Solution

1. Step 1: Write the proportion equation
   22,692 : 31,314.96 = 12,756 : x
2. Step 2: Convert to fraction form
   22,692/31,314.96 = 12,756/x
3. Step 3: Cross multiply
   22,692x = 31,314.96 × 12,756
4. Step 4: Simplify right side
   22,692x = 399,453,629.76
5. Step 5: Solve for x
   x = 399,453,629.76/22,692
6. Step 6: Final answer
   x = 17,603.28