Finding the Fourth Proportional to 18,583.63, 25,645.59 and 10,085.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,583.63 : 25,645.59 = 10,085.82 : x
2. Step 2: Convert to fraction form
   18,583.63/25,645.59 = 10,085.82/x
3. Step 3: Cross multiply
   18,583.63x = 25,645.59 × 10,085.82
4. Step 4: Simplify right side
   18,583.63x = 258,656,938.53
5. Step 5: Solve for x
   x = 258,656,938.53/18,583.63
6. Step 6: Final answer
   x = 13,918.54