Finding the Fourth Proportional to 22,059.36, 30,442.50 and 12,630.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,059.36 : 30,442.50 = 12,630.96 : x
2. Step 2: Convert to fraction form
   22,059.36/30,442.50 = 12,630.96/x
3. Step 3: Cross multiply
   22,059.36x = 30,442.50 × 12,630.96
4. Step 4: Simplify right side
   22,059.36x = 384,517,999.80
5. Step 5: Solve for x
   x = 384,517,999.80/22,059.36
6. Step 6: Final answer
   x = 17,431.06