Finding the Fourth Proportional to 18,705.94, 25,816.59 and 10,749.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,705.94 : 25,816.59 = 10,749.72 : x
2. Step 2: Convert to fraction form
   18,705.94/25,816.59 = 10,749.72/x
3. Step 3: Cross multiply
   18,705.94x = 25,816.59 × 10,749.72
4. Step 4: Simplify right side
   18,705.94x = 277,521,113.85
5. Step 5: Solve for x
   x = 277,521,113.85/18,705.94
6. Step 6: Final answer
   x = 14,835.99