Finding the Fourth Proportional to 21,704.75, 29,956.39 and 12,752.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,704.75 : 29,956.39 = 12,752.25 : x
2. Step 2: Convert to fraction form
   21,704.75/29,956.39 = 12,752.25/x
3. Step 3: Cross multiply
   21,704.75x = 29,956.39 × 12,752.25
4. Step 4: Simplify right side
   21,704.75x = 382,011,160.83
5. Step 5: Solve for x
   x = 382,011,160.83/21,704.75
6. Step 6: Final answer
   x = 17,600.35