Finding the Fourth Proportional to 8,499.47, 11,729.09 and 4,722.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.47 : 11,729.09 = 4,722.42 : x
2. Step 2: Convert to fraction form
   8,499.47/11,729.09 = 4,722.42/x
3. Step 3: Cross multiply
   8,499.47x = 11,729.09 × 4,722.42
4. Step 4: Simplify right side
   8,499.47x = 55,389,630.55
5. Step 5: Solve for x
   x = 55,389,630.55/8,499.47
6. Step 6: Final answer
   x = 6,516.83