Finding the Fourth Proportional to 22,105.89, 30,502.69 and 12,672.63

Step by Step Solution

1. Step 1: Write the proportion equation
   22,105.89 : 30,502.69 = 12,672.63 : x
2. Step 2: Convert to fraction form
   22,105.89/30,502.69 = 12,672.63/x
3. Step 3: Cross multiply
   22,105.89x = 30,502.69 × 12,672.63
4. Step 4: Simplify right side
   22,105.89x = 386,549,304.37
5. Step 5: Solve for x
   x = 386,549,304.37/22,105.89
6. Step 6: Final answer
   x = 17,486.26