Finding the Fourth Proportional to 10,289.61, 15,436.56 and 5,849.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,289.61 : 15,436.56 = 5,849.31 : x
2. Step 2: Convert to fraction form
   10,289.61/15,436.56 = 5,849.31/x
3. Step 3: Cross multiply
   10,289.61x = 15,436.56 × 5,849.31
4. Step 4: Simplify right side
   10,289.61x = 90,293,296.37
5. Step 5: Solve for x
   x = 90,293,296.37/10,289.61
6. Step 6: Final answer
   x = 8,775.19