Finding the Fourth Proportional to 31,401.57, 43,304.38 and 20,627.49

Step by Step Solution

1. Step 1: Write the proportion equation
   31,401.57 : 43,304.38 = 20,627.49 : x
2. Step 2: Convert to fraction form
   31,401.57/43,304.38 = 20,627.49/x
3. Step 3: Cross multiply
   31,401.57x = 43,304.38 × 20,627.49
4. Step 4: Simplify right side
   31,401.57x = 893,260,665.41
5. Step 5: Solve for x
   x = 893,260,665.41/31,401.57
6. Step 6: Final answer
   x = 28,446.37