Finding the Fourth Proportional to 5,789.37, 7,989.33 and 3,136.79

Step by Step Solution

1. Step 1: Write the proportion equation
   5,789.37 : 7,989.33 = 3,136.79 : x
2. Step 2: Convert to fraction form
   5,789.37/7,989.33 = 3,136.79/x
3. Step 3: Cross multiply
   5,789.37x = 7,989.33 × 3,136.79
4. Step 4: Simplify right side
   5,789.37x = 25,060,810.50
5. Step 5: Solve for x
   x = 25,060,810.50/5,789.37
6. Step 6: Final answer
   x = 4,328.76