Finding the Fourth Proportional to 9,613.44, 13,266.72 and 5,637.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,613.44 : 13,266.72 = 5,637.42 : x
2. Step 2: Convert to fraction form
   9,613.44/13,266.72 = 5,637.42/x
3. Step 3: Cross multiply
   9,613.44x = 13,266.72 × 5,637.42
4. Step 4: Simplify right side
   9,613.44x = 74,790,072.66
5. Step 5: Solve for x
   x = 74,790,072.66/9,613.44
6. Step 6: Final answer
   x = 7,779.74