Finding the Fourth Proportional to 22,601.86, 31,184.18 and 13,168.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,601.86 : 31,184.18 = 13,168.60 : x
2. Step 2: Convert to fraction form
   22,601.86/31,184.18 = 13,168.60/x
3. Step 3: Cross multiply
   22,601.86x = 31,184.18 × 13,168.60
4. Step 4: Simplify right side
   22,601.86x = 410,651,992.75
5. Step 5: Solve for x
   x = 410,651,992.75/22,601.86
6. Step 6: Final answer
   x = 18,168.95