Finding the Fourth Proportional to 18,443.37, 25,445.84 and 10,887.15

Step by Step Solution

1. Step 1: Write the proportion equation
   18,443.37 : 25,445.84 = 10,887.15 : x
2. Step 2: Convert to fraction form
   18,443.37/25,445.84 = 10,887.15/x
3. Step 3: Cross multiply
   18,443.37x = 25,445.84 × 10,887.15
4. Step 4: Simplify right side
   18,443.37x = 277,032,622.52
5. Step 5: Solve for x
   x = 277,032,622.52/18,443.37
6. Step 6: Final answer
   x = 15,020.72