Finding the Fourth Proportional to 21,874.15, 30,175.82 and 14,317.15

Step by Step Solution

1. Step 1: Write the proportion equation
   21,874.15 : 30,175.82 = 14,317.15 : x
2. Step 2: Convert to fraction form
   21,874.15/30,175.82 = 14,317.15/x
3. Step 3: Cross multiply
   21,874.15x = 30,175.82 × 14,317.15
4. Step 4: Simplify right side
   21,874.15x = 432,031,741.31
5. Step 5: Solve for x
   x = 432,031,741.31/21,874.15
6. Step 6: Final answer
   x = 19,750.79