Finding the Fourth Proportional to 22,743.86, 31,386.59 and 13,185.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,743.86 : 31,386.59 = 13,185.60 : x
2. Step 2: Convert to fraction form
   22,743.86/31,386.59 = 13,185.60/x
3. Step 3: Cross multiply
   22,743.86x = 31,386.59 × 13,185.60
4. Step 4: Simplify right side
   22,743.86x = 413,850,955.18
5. Step 5: Solve for x
   x = 413,850,955.18/22,743.86
6. Step 6: Final answer
   x = 18,196.17