Finding the Fourth Proportional to 22,180.94, 30,610.16 and 12,109.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,180.94 : 30,610.16 = 12,109.80 : x
2. Step 2: Convert to fraction form
   22,180.94/30,610.16 = 12,109.80/x
3. Step 3: Cross multiply
   22,180.94x = 30,610.16 × 12,109.80
4. Step 4: Simplify right side
   22,180.94x = 370,683,015.22
5. Step 5: Solve for x
   x = 370,683,015.22/22,180.94
6. Step 6: Final answer
   x = 16,711.78