Finding the Fourth Proportional to 25,627.35, 38,429.49 and 10,828.65

Step by Step Solution

1. Step 1: Write the proportion equation
   25,627.35 : 38,429.49 = 10,828.65 : x
2. Step 2: Convert to fraction form
   25,627.35/38,429.49 = 10,828.65/x
3. Step 3: Cross multiply
   25,627.35x = 38,429.49 × 10,828.65
4. Step 4: Simplify right side
   25,627.35x = 416,139,496.89
5. Step 5: Solve for x
   x = 416,139,496.89/25,627.35
6. Step 6: Final answer
   x = 16,238.10