Finding the Fourth Proportional to 21,778.74, 32,664.22 and 5,768.39

Step by Step Solution

1. Step 1: Write the proportion equation
   21,778.74 : 32,664.22 = 5,768.39 : x
2. Step 2: Convert to fraction form
   21,778.74/32,664.22 = 5,768.39/x
3. Step 3: Cross multiply
   21,778.74x = 32,664.22 × 5,768.39
4. Step 4: Simplify right side
   21,778.74x = 188,419,849.50
5. Step 5: Solve for x
   x = 188,419,849.50/21,778.74
6. Step 6: Final answer
   x = 8,651.55