Finding the Fourth Proportional to 10,754.19, 16,128.20 and 4,178.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,754.19 : 16,128.20 = 4,178.83 : x
2. Step 2: Convert to fraction form
   10,754.19/16,128.20 = 4,178.83/x
3. Step 3: Cross multiply
   10,754.19x = 16,128.20 × 4,178.83
4. Step 4: Simplify right side
   10,754.19x = 67,397,006.01
5. Step 5: Solve for x
   x = 67,397,006.01/10,754.19
6. Step 6: Final answer
   x = 6,267.05