Finding the Fourth Proportional to 8,499.42, 11,729.43 and 4,722.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.42 : 11,729.43 = 4,722.48 : x
2. Step 2: Convert to fraction form
   8,499.42/11,729.43 = 4,722.48/x
3. Step 3: Cross multiply
   8,499.42x = 11,729.43 × 4,722.48
4. Step 4: Simplify right side
   8,499.42x = 55,391,998.59
5. Step 5: Solve for x
   x = 55,391,998.59/8,499.42
6. Step 6: Final answer
   x = 6,517.15