Finding the Fourth Proportional to 12,623, 18,938.18 and 3,738.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,623 : 18,938.18 = 3,738.56 : x
2. Step 2: Convert to fraction form
   12,623/18,938.18 = 3,738.56/x
3. Step 3: Cross multiply
   12,623x = 18,938.18 × 3,738.56
4. Step 4: Simplify right side
   12,623x = 70,801,522.22
5. Step 5: Solve for x
   x = 70,801,522.22/12,623
6. Step 6: Final answer
   x = 5,608.93