Finding the Fourth Proportional to 18,667.50, 25,761.15 and 10,284.18

Step by Step Solution

1. Step 1: Write the proportion equation
   18,667.50 : 25,761.15 = 10,284.18 : x
2. Step 2: Convert to fraction form
   18,667.50/25,761.15 = 10,284.18/x
3. Step 3: Cross multiply
   18,667.50x = 25,761.15 × 10,284.18
4. Step 4: Simplify right side
   18,667.50x = 264,932,303.61
5. Step 5: Solve for x
   x = 264,932,303.61/18,667.50
6. Step 6: Final answer
   x = 14,192.17