Finding the Fourth Proportional to 22,054.91, 30,425.49 and 12,618

Step by Step Solution

1. Step 1: Write the proportion equation
   22,054.91 : 30,425.49 = 12,618 : x
2. Step 2: Convert to fraction form
   22,054.91/30,425.49 = 12,618/x
3. Step 3: Cross multiply
   22,054.91x = 30,425.49 × 12,618
4. Step 4: Simplify right side
   22,054.91x = 383,908,832.82
5. Step 5: Solve for x
   x = 383,908,832.82/22,054.91
6. Step 6: Final answer
   x = 17,406.96