Finding the Fourth Proportional to 10,956.72, 16,425.34 and 4,029.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,956.72 : 16,425.34 = 4,029.60 : x
2. Step 2: Convert to fraction form
   10,956.72/16,425.34 = 4,029.60/x
3. Step 3: Cross multiply
   10,956.72x = 16,425.34 × 4,029.60
4. Step 4: Simplify right side
   10,956.72x = 66,187,550.06
5. Step 5: Solve for x
   x = 66,187,550.06/10,956.72
6. Step 6: Final answer
   x = 6,040.82