Finding the Fourth Proportional to 31,162.52, 42,942.48 and 22,194.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,162.52 : 42,942.48 = 22,194.20 : x
2. Step 2: Convert to fraction form
   31,162.52/42,942.48 = 22,194.20/x
3. Step 3: Cross multiply
   31,162.52x = 42,942.48 × 22,194.20
4. Step 4: Simplify right side
   31,162.52x = 953,073,989.62
5. Step 5: Solve for x
   x = 953,073,989.62/31,162.52
6. Step 6: Final answer
   x = 30,583.98