Finding the Fourth Proportional to 15,613.50, 23,418.53 and 3,926.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15,613.50 : 23,418.53 = 3,926.72 : x
2. Step 2: Convert to fraction form
   15,613.50/23,418.53 = 3,926.72/x
3. Step 3: Cross multiply
   15,613.50x = 23,418.53 × 3,926.72
4. Step 4: Simplify right side
   15,613.50x = 91,958,049.03
5. Step 5: Solve for x
   x = 91,958,049.03/15,613.50
6. Step 6: Final answer
   x = 5,889.65