Finding the Fourth Proportional to 50,677.72, 76,024.78 and 21,096.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,677.72 : 76,024.78 = 21,096.72 : x
2. Step 2: Convert to fraction form
   50,677.72/76,024.78 = 21,096.72/x
3. Step 3: Cross multiply
   50,677.72x = 76,024.78 × 21,096.72
4. Step 4: Simplify right side
   50,677.72x = 1,603,873,443.98
5. Step 5: Solve for x
   x = 1,603,873,443.98/50,677.72
6. Step 6: Final answer
   x = 31,648.49