Finding the Fourth Proportional to 21,758.06, 30,054.30 and 17,996.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,758.06 : 30,054.30 = 17,996.42 : x
2. Step 2: Convert to fraction form
   21,758.06/30,054.30 = 17,996.42/x
3. Step 3: Cross multiply
   21,758.06x = 30,054.30 × 17,996.42
4. Step 4: Simplify right side
   21,758.06x = 540,869,805.61
5. Step 5: Solve for x
   x = 540,869,805.61/21,758.06
6. Step 6: Final answer
   x = 24,858.37