Finding the Fourth Proportional to 10,764.54, 16,131.77 and 5,216.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,764.54 : 16,131.77 = 5,216.41 : x
2. Step 2: Convert to fraction form
   10,764.54/16,131.77 = 5,216.41/x
3. Step 3: Cross multiply
   10,764.54x = 16,131.77 × 5,216.41
4. Step 4: Simplify right side
   10,764.54x = 84,149,819.60
5. Step 5: Solve for x
   x = 84,149,819.60/10,764.54
6. Step 6: Final answer
   x = 7,817.32