Finding the Fourth Proportional to 9,805.62, 13,528.46 and 5,556.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,805.62 : 13,528.46 = 5,556.26 : x
2. Step 2: Convert to fraction form
   9,805.62/13,528.46 = 5,556.26/x
3. Step 3: Cross multiply
   9,805.62x = 13,528.46 × 5,556.26
4. Step 4: Simplify right side
   9,805.62x = 75,167,641.16
5. Step 5: Solve for x
   x = 75,167,641.16/9,805.62
6. Step 6: Final answer
   x = 7,665.77