Finding the Fourth Proportional to 4,776.72, 7,193.12 and 4,167.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,776.72 : 7,193.12 = 4,167.72 : x
2. Step 2: Convert to fraction form
   4,776.72/7,193.12 = 4,167.72/x
3. Step 3: Cross multiply
   4,776.72x = 7,193.12 × 4,167.72
4. Step 4: Simplify right side
   4,776.72x = 29,978,910.09
5. Step 5: Solve for x
   x = 29,978,910.09/4,776.72
6. Step 6: Final answer
   x = 6,276.05