Finding the Fourth Proportional to 8,722.31, 12,036.51 and 4,945.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,722.31 : 12,036.51 = 4,945.82 : x
2. Step 2: Convert to fraction form
   8,722.31/12,036.51 = 4,945.82/x
3. Step 3: Cross multiply
   8,722.31x = 12,036.51 × 4,945.82
4. Step 4: Simplify right side
   8,722.31x = 59,530,351.71
5. Step 5: Solve for x
   x = 59,530,351.71/8,722.31
6. Step 6: Final answer
   x = 6,825.07