Finding the Fourth Proportional to 10,756.32, 16,119.90 and 7,993.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,756.32 : 16,119.90 = 7,993.41 : x
2. Step 2: Convert to fraction form
   10,756.32/16,119.90 = 7,993.41/x
3. Step 3: Cross multiply
   10,756.32x = 16,119.90 × 7,993.41
4. Step 4: Simplify right side
   10,756.32x = 128,852,969.86
5. Step 5: Solve for x
   x = 128,852,969.86/10,756.32
6. Step 6: Final answer
   x = 11,979.28