Finding the Fourth Proportional to 9,855.09, 14,777.52 and 3,613.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,855.09 : 14,777.52 = 3,613.50 : x
2. Step 2: Convert to fraction form
   9,855.09/14,777.52 = 3,613.50/x
3. Step 3: Cross multiply
   9,855.09x = 14,777.52 × 3,613.50
4. Step 4: Simplify right side
   9,855.09x = 53,398,568.52
5. Step 5: Solve for x
   x = 53,398,568.52/9,855.09
6. Step 6: Final answer
   x = 5,418.37