Finding the Fourth Proportional to 10,404.47, 15,606.57 and 2,613.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,404.47 : 15,606.57 = 2,613.29 : x
2. Step 2: Convert to fraction form
   10,404.47/15,606.57 = 2,613.29/x
3. Step 3: Cross multiply
   10,404.47x = 15,606.57 × 2,613.29
4. Step 4: Simplify right side
   10,404.47x = 40,784,425.08
5. Step 5: Solve for x
   x = 40,784,425.08/10,404.47
6. Step 6: Final answer
   x = 3,919.89