Finding the Fourth Proportional to 30,644.42, 42,252.50 and 22,132.94

Step by Step Solution

1. Step 1: Write the proportion equation
   30,644.42 : 42,252.50 = 22,132.94 : x
2. Step 2: Convert to fraction form
   30,644.42/42,252.50 = 22,132.94/x
3. Step 3: Cross multiply
   30,644.42x = 42,252.50 × 22,132.94
4. Step 4: Simplify right side
   30,644.42x = 935,171,891.42
5. Step 5: Solve for x
   x = 935,171,891.42/30,644.42
6. Step 6: Final answer
   x = 30,516.88