Finding the Fourth Proportional to 18,684.29, 25,784.32 and 10,300.79

Step by Step Solution

1. Step 1: Write the proportion equation
   18,684.29 : 25,784.32 = 10,300.79 : x
2. Step 2: Convert to fraction form
   18,684.29/25,784.32 = 10,300.79/x
3. Step 3: Cross multiply
   18,684.29x = 25,784.32 × 10,300.79
4. Step 4: Simplify right side
   18,684.29x = 265,598,865.61
5. Step 5: Solve for x
   x = 265,598,865.61/18,684.29
6. Step 6: Final answer
   x = 14,215.09