Finding the Fourth Proportional to 22,100.61, 30,498.53 and 12,164.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,100.61 : 30,498.53 = 12,164.61 : x
2. Step 2: Convert to fraction form
   22,100.61/30,498.53 = 12,164.61/x
3. Step 3: Cross multiply
   22,100.61x = 30,498.53 × 12,164.61
4. Step 4: Simplify right side
   22,100.61x = 371,002,662.20
5. Step 5: Solve for x
   x = 371,002,662.20/22,100.61
6. Step 6: Final answer
   x = 16,786.99