Finding the Fourth Proportional to 21,758.38, 30,026.59 and 12,327.58

Step by Step Solution

1. Step 1: Write the proportion equation
   21,758.38 : 30,026.59 = 12,327.58 : x
2. Step 2: Convert to fraction form
   21,758.38/30,026.59 = 12,327.58/x
3. Step 3: Cross multiply
   21,758.38x = 30,026.59 × 12,327.58
4. Step 4: Simplify right side
   21,758.38x = 370,155,040.22
5. Step 5: Solve for x
   x = 370,155,040.22/21,758.38
6. Step 6: Final answer
   x = 17,012.07