Finding the Fourth Proportional to 39,968.42, 55,153.59 and 22,059.59

Step by Step Solution

1. Step 1: Write the proportion equation
   39,968.42 : 55,153.59 = 22,059.59 : x
2. Step 2: Convert to fraction form
   39,968.42/55,153.59 = 22,059.59/x
3. Step 3: Cross multiply
   39,968.42x = 55,153.59 × 22,059.59
4. Step 4: Simplify right side
   39,968.42x = 1,216,665,582.43
5. Step 5: Solve for x
   x = 1,216,665,582.43/39,968.42
6. Step 6: Final answer
   x = 30,440.67