Finding the Fourth Proportional to 10,764.13, 16,131.16 and 5,216

Step by Step Solution

1. Step 1: Write the proportion equation
   10,764.13 : 16,131.16 = 5,216 : x
2. Step 2: Convert to fraction form
   10,764.13/16,131.16 = 5,216/x
3. Step 3: Cross multiply
   10,764.13x = 16,131.16 × 5,216
4. Step 4: Simplify right side
   10,764.13x = 84,140,104.48
5. Step 5: Solve for x
   x = 84,140,104.48/10,764.13
6. Step 6: Final answer
   x = 7,816.71