Finding the Fourth Proportional to 39,968.94, 55,158.54 and 22,064.61

Step by Step Solution

1. Step 1: Write the proportion equation
   39,968.94 : 55,158.54 = 22,064.61 : x
2. Step 2: Convert to fraction form
   39,968.94/55,158.54 = 22,064.61/x
3. Step 3: Cross multiply
   39,968.94x = 55,158.54 × 22,064.61
4. Step 4: Simplify right side
   39,968.94x = 1,217,051,673.27
5. Step 5: Solve for x
   x = 1,217,051,673.27/39,968.94
6. Step 6: Final answer
   x = 30,449.94