Finding the Fourth Proportional to 8,722.56, 12,036.80 and 4,743.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,722.56 : 12,036.80 = 4,743.69 : x
2. Step 2: Convert to fraction form
   8,722.56/12,036.80 = 4,743.69/x
3. Step 3: Cross multiply
   8,722.56x = 12,036.80 × 4,743.69
4. Step 4: Simplify right side
   8,722.56x = 57,098,814.51
5. Step 5: Solve for x
   x = 57,098,814.51/8,722.56
6. Step 6: Final answer
   x = 6,546.10