Finding the Fourth Proportional to 9,804.69, 13,530.36 and 5,555.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,804.69 : 13,530.36 = 5,555.43 : x
2. Step 2: Convert to fraction form
   9,804.69/13,530.36 = 5,555.43/x
3. Step 3: Cross multiply
   9,804.69x = 13,530.36 × 5,555.43
4. Step 4: Simplify right side
   9,804.69x = 75,166,967.85
5. Step 5: Solve for x
   x = 75,166,967.85/9,804.69
6. Step 6: Final answer
   x = 7,666.43