Finding the Fourth Proportional to 22,215.30, 30,656.22 and 12,144.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,215.30 : 30,656.22 = 12,144.10 : x
2. Step 2: Convert to fraction form
   22,215.30/30,656.22 = 12,144.10/x
3. Step 3: Cross multiply
   22,215.30x = 30,656.22 × 12,144.10
4. Step 4: Simplify right side
   22,215.30x = 372,292,201.30
5. Step 5: Solve for x
   x = 372,292,201.30/22,215.30
6. Step 6: Final answer
   x = 16,758.37