Finding the Fourth Proportional to 22,447.94, 30,978.01 and 12,376.33

Step by Step Solution

1. Step 1: Write the proportion equation
   22,447.94 : 30,978.01 = 12,376.33 : x
2. Step 2: Convert to fraction form
   22,447.94/30,978.01 = 12,376.33/x
3. Step 3: Cross multiply
   22,447.94x = 30,978.01 × 12,376.33
4. Step 4: Simplify right side
   22,447.94x = 383,394,012.53
5. Step 5: Solve for x
   x = 383,394,012.53/22,447.94
6. Step 6: Final answer
   x = 17,079.26