Finding the Fourth Proportional to 22,792.25, 31,454.88 and 12,722.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,792.25 : 31,454.88 = 12,722.64 : x
2. Step 2: Convert to fraction form
   22,792.25/31,454.88 = 12,722.64/x
3. Step 3: Cross multiply
   22,792.25x = 31,454.88 × 12,722.64
4. Step 4: Simplify right side
   22,792.25x = 400,189,050.87
5. Step 5: Solve for x
   x = 400,189,050.87/22,792.25
6. Step 6: Final answer
   x = 17,558.12