Finding the Fourth Proportional to 20,889.33, 31,297.52 and 17,401.74

Step by Step Solution

1. Step 1: Write the proportion equation
   20,889.33 : 31,297.52 = 17,401.74 : x
2. Step 2: Convert to fraction form
   20,889.33/31,297.52 = 17,401.74/x
3. Step 3: Cross multiply
   20,889.33x = 31,297.52 × 17,401.74
4. Step 4: Simplify right side
   20,889.33x = 544,631,231.82
5. Step 5: Solve for x
   x = 544,631,231.82/20,889.33
6. Step 6: Final answer
   x = 26,072.23