Finding the Fourth Proportional to 22,055.91, 30,426.87 and 12,619

Step by Step Solution

1. Step 1: Write the proportion equation
   22,055.91 : 30,426.87 = 12,619 : x
2. Step 2: Convert to fraction form
   22,055.91/30,426.87 = 12,619/x
3. Step 3: Cross multiply
   22,055.91x = 30,426.87 × 12,619
4. Step 4: Simplify right side
   22,055.91x = 383,956,672.53
5. Step 5: Solve for x
   x = 383,956,672.53/22,055.91
6. Step 6: Final answer
   x = 17,408.34