Finding the Fourth Proportional to 21,758.26, 30,026.42 and 12,326.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,758.26 : 30,026.42 = 12,326.83 : x
2. Step 2: Convert to fraction form
   21,758.26/30,026.42 = 12,326.83/x
3. Step 3: Cross multiply
   21,758.26x = 30,026.42 × 12,326.83
4. Step 4: Simplify right side
   21,758.26x = 370,130,574.85
5. Step 5: Solve for x
   x = 370,130,574.85/21,758.26
6. Step 6: Final answer
   x = 17,011.04