Finding the Fourth Proportional to 22,131.88, 30,542.34 and 12,195.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,131.88 : 30,542.34 = 12,195.88 : x
2. Step 2: Convert to fraction form
   22,131.88/30,542.34 = 12,195.88/x
3. Step 3: Cross multiply
   22,131.88x = 30,542.34 × 12,195.88
4. Step 4: Simplify right side
   22,131.88x = 372,490,713.56
5. Step 5: Solve for x
   x = 372,490,713.56/22,131.88
6. Step 6: Final answer
   x = 16,830.50