Finding the Fourth Proportional to 25,596.86, 38,411.69 and 12,442.06

Step by Step Solution

1. Step 1: Write the proportion equation
   25,596.86 : 38,411.69 = 12,442.06 : x
2. Step 2: Convert to fraction form
   25,596.86/38,411.69 = 12,442.06/x
3. Step 3: Cross multiply
   25,596.86x = 38,411.69 × 12,442.06
4. Step 4: Simplify right side
   25,596.86x = 477,920,426.40
5. Step 5: Solve for x
   x = 477,920,426.40/25,596.86
6. Step 6: Final answer
   x = 18,671.06