Finding the Fourth Proportional to 22,743.05, 31,387.10 and 13,185.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,743.05 : 31,387.10 = 13,185.86 : x
2. Step 2: Convert to fraction form
   22,743.05/31,387.10 = 13,185.86/x
3. Step 3: Cross multiply
   22,743.05x = 31,387.10 × 13,185.86
4. Step 4: Simplify right side
   22,743.05x = 413,865,683.54
5. Step 5: Solve for x
   x = 413,865,683.54/22,743.05
6. Step 6: Final answer
   x = 18,197.46