Finding the Fourth Proportional to 9,781.55, 14,673.49 and 3,115.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,781.55 : 14,673.49 = 3,115.71 : x
2. Step 2: Convert to fraction form
   9,781.55/14,673.49 = 3,115.71/x
3. Step 3: Cross multiply
   9,781.55x = 14,673.49 × 3,115.71
4. Step 4: Simplify right side
   9,781.55x = 45,718,350.52
5. Step 5: Solve for x
   x = 45,718,350.52/9,781.55
6. Step 6: Final answer
   x = 4,673.94