Finding the Fourth Proportional to 10,742.23, 16,119.21 and 4,168.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,742.23 : 16,119.21 = 4,168.67 : x
2. Step 2: Convert to fraction form
   10,742.23/16,119.21 = 4,168.67/x
3. Step 3: Cross multiply
   10,742.23x = 16,119.21 × 4,168.67
4. Step 4: Simplify right side
   10,742.23x = 67,195,667.15
5. Step 5: Solve for x
   x = 67,195,667.15/10,742.23
6. Step 6: Final answer
   x = 6,255.28