Finding the Fourth Proportional to 9,673.62, 13,357.27 and 7,779.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,673.62 : 13,357.27 = 7,779.13 : x
2. Step 2: Convert to fraction form
   9,673.62/13,357.27 = 7,779.13/x
3. Step 3: Cross multiply
   9,673.62x = 13,357.27 × 7,779.13
4. Step 4: Simplify right side
   9,673.62x = 103,907,939.78
5. Step 5: Solve for x
   x = 103,907,939.78/9,673.62
6. Step 6: Final answer
   x = 10,741.37