Finding the Fourth Proportional to 9,806.13, 13,530.29 and 5,556.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,806.13 : 13,530.29 = 5,556.83 : x
2. Step 2: Convert to fraction form
   9,806.13/13,530.29 = 5,556.83/x
3. Step 3: Cross multiply
   9,806.13x = 13,530.29 × 5,556.83
4. Step 4: Simplify right side
   9,806.13x = 75,185,425.95
5. Step 5: Solve for x
   x = 75,185,425.95/9,806.13
6. Step 6: Final answer
   x = 7,667.19