Finding the Fourth Proportional to 5,644.89, 7,789.69 and 3,126.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,644.89 : 7,789.69 = 3,126.83 : x
2. Step 2: Convert to fraction form
   5,644.89/7,789.69 = 3,126.83/x
3. Step 3: Cross multiply
   5,644.89x = 7,789.69 × 3,126.83
4. Step 4: Simplify right side
   5,644.89x = 24,357,036.38
5. Step 5: Solve for x
   x = 24,357,036.38/5,644.89
6. Step 6: Final answer
   x = 4,314.88