Finding the Fourth Proportional to 9,805.56, 13,531.68 and 5,613.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,805.56 : 13,531.68 = 5,613.84 : x
2. Step 2: Convert to fraction form
   9,805.56/13,531.68 = 5,613.84/x
3. Step 3: Cross multiply
   9,805.56x = 13,531.68 × 5,613.84
4. Step 4: Simplify right side
   9,805.56x = 75,964,686.45
5. Step 5: Solve for x
   x = 75,964,686.45/9,805.56
6. Step 6: Final answer
   x = 7,747.10