Finding the Fourth Proportional to 22,665.81, 31,269.86 and 13,103.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,665.81 : 31,269.86 = 13,103.94 : x
2. Step 2: Convert to fraction form
   22,665.81/31,269.86 = 13,103.94/x
3. Step 3: Cross multiply
   22,665.81x = 31,269.86 × 13,103.94
4. Step 4: Simplify right side
   22,665.81x = 409,758,147.38
5. Step 5: Solve for x
   x = 409,758,147.38/22,665.81
6. Step 6: Final answer
   x = 18,078.25