Finding the Fourth Proportional to 8,499.01, 11,728.47 and 4,722.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.01 : 11,728.47 = 4,722.16 : x
2. Step 2: Convert to fraction form
   8,499.01/11,728.47 = 4,722.16/x
3. Step 3: Cross multiply
   8,499.01x = 11,728.47 × 4,722.16
4. Step 4: Simplify right side
   8,499.01x = 55,383,711.90
5. Step 5: Solve for x
   x = 55,383,711.90/8,499.01
6. Step 6: Final answer
   x = 6,516.49