Finding the Fourth Proportional to 22,191.88, 30,627.30 and 12,634.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,191.88 : 30,627.30 = 12,634.12 : x
2. Step 2: Convert to fraction form
   22,191.88/30,627.30 = 12,634.12/x
3. Step 3: Cross multiply
   22,191.88x = 30,627.30 × 12,634.12
4. Step 4: Simplify right side
   22,191.88x = 386,948,983.48
5. Step 5: Solve for x
   x = 386,948,983.48/22,191.88
6. Step 6: Final answer
   x = 17,436.51