Finding the Fourth Proportional to 50,490, 69,676.22 and 29,281.56

Step by Step Solution

1. Step 1: Write the proportion equation
   50,490 : 69,676.22 = 29,281.56 : x
2. Step 2: Convert to fraction form
   50,490/69,676.22 = 29,281.56/x
3. Step 3: Cross multiply
   50,490x = 69,676.22 × 29,281.56
4. Step 4: Simplify right side
   50,490x = 2,040,228,416.50
5. Step 5: Solve for x
   x = 2,040,228,416.50/50,490
6. Step 6: Final answer
   x = 40,408.56