Finding the Fourth Proportional to 9,613.34, 13,266.41 and 5,421.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,613.34 : 13,266.41 = 5,421.59 : x
2. Step 2: Convert to fraction form
   9,613.34/13,266.41 = 5,421.59/x
3. Step 3: Cross multiply
   9,613.34x = 13,266.41 × 5,421.59
4. Step 4: Simplify right side
   9,613.34x = 71,924,942.35
5. Step 5: Solve for x
   x = 71,924,942.35/9,613.34
6. Step 6: Final answer
   x = 7,481.79