Finding the Fourth Proportional to 18,470.72, 25,499.94 and 12,194.12

Step by Step Solution

1. Step 1: Write the proportion equation
   18,470.72 : 25,499.94 = 12,194.12 : x
2. Step 2: Convert to fraction form
   18,470.72/25,499.94 = 12,194.12/x
3. Step 3: Cross multiply
   18,470.72x = 25,499.94 × 12,194.12
4. Step 4: Simplify right side
   18,470.72x = 310,949,328.35
5. Step 5: Solve for x
   x = 310,949,328.35/18,470.72
6. Step 6: Final answer
   x = 16,834.72