Finding the Fourth Proportional to 13,167.72, 19,757.06 and 5,777.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,167.72 : 19,757.06 = 5,777.48 : x
2. Step 2: Convert to fraction form
   13,167.72/19,757.06 = 5,777.48/x
3. Step 3: Cross multiply
   13,167.72x = 19,757.06 × 5,777.48
4. Step 4: Simplify right side
   13,167.72x = 114,146,019.01
5. Step 5: Solve for x
   x = 114,146,019.01/13,167.72
6. Step 6: Final answer
   x = 8,668.62