Finding the Fourth Proportional to 30,725.56, 42,401.56 and 17,294.21

Step by Step Solution

1. Step 1: Write the proportion equation
   30,725.56 : 42,401.56 = 17,294.21 : x
2. Step 2: Convert to fraction form
   30,725.56/42,401.56 = 17,294.21/x
3. Step 3: Cross multiply
   30,725.56x = 42,401.56 × 17,294.21
4. Step 4: Simplify right side
   30,725.56x = 733,301,270.96
5. Step 5: Solve for x
   x = 733,301,270.96/30,725.56
6. Step 6: Final answer
   x = 23,866.17