Finding the Fourth Proportional to 5,889.78, 8,127.37 and 3,499.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,889.78 : 8,127.37 = 3,499.57 : x
2. Step 2: Convert to fraction form
   5,889.78/8,127.37 = 3,499.57/x
3. Step 3: Cross multiply
   5,889.78x = 8,127.37 × 3,499.57
4. Step 4: Simplify right side
   5,889.78x = 28,442,300.23
5. Step 5: Solve for x
   x = 28,442,300.23/5,889.78
6. Step 6: Final answer
   x = 4,829.09