Finding the Fourth Proportional to 21,714.94, 29,962.72 and 12,764.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,714.94 : 29,962.72 = 12,764.25 : x
2. Step 2: Convert to fraction form
   21,714.94/29,962.72 = 12,764.25/x
3. Step 3: Cross multiply
   21,714.94x = 29,962.72 × 12,764.25
4. Step 4: Simplify right side
   21,714.94x = 382,451,648.76
5. Step 5: Solve for x
   x = 382,451,648.76/21,714.94
6. Step 6: Final answer
   x = 17,612.37