Finding the Fourth Proportional to 9,806.09, 13,531.32 and 5,556.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,806.09 : 13,531.32 = 5,556.83 : x
2. Step 2: Convert to fraction form
   9,806.09/13,531.32 = 5,556.83/x
3. Step 3: Cross multiply
   9,806.09x = 13,531.32 × 5,556.83
4. Step 4: Simplify right side
   9,806.09x = 75,191,177.26
5. Step 5: Solve for x
   x = 75,191,177.26/9,806.09
6. Step 6: Final answer
   x = 7,667.81