Finding the Fourth Proportional to 10,933.86, 16,409.16 and 8,019.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,933.86 : 16,409.16 = 8,019.76 : x
2. Step 2: Convert to fraction form
   10,933.86/16,409.16 = 8,019.76/x
3. Step 3: Cross multiply
   10,933.86x = 16,409.16 × 8,019.76
4. Step 4: Simplify right side
   10,933.86x = 131,597,525.00
5. Step 5: Solve for x
   x = 131,597,525.00/10,933.86
6. Step 6: Final answer
   x = 12,035.78