Finding the Fourth Proportional to 22,167, 30,590.46 and 15,105.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,167 : 30,590.46 = 15,105.72 : x
2. Step 2: Convert to fraction form
   22,167/30,590.46 = 15,105.72/x
3. Step 3: Cross multiply
   22,167x = 30,590.46 × 15,105.72
4. Step 4: Simplify right side
   22,167x = 462,091,038.15
5. Step 5: Solve for x
   x = 462,091,038.15/22,167
6. Step 6: Final answer
   x = 20,845.90