Finding the Fourth Proportional to 39,966.42, 55,150.83 and 22,057.59

Step by Step Solution

1. Step 1: Write the proportion equation
   39,966.42 : 55,150.83 = 22,057.59 : x
2. Step 2: Convert to fraction form
   39,966.42/55,150.83 = 22,057.59/x
3. Step 3: Cross multiply
   39,966.42x = 55,150.83 × 22,057.59
4. Step 4: Simplify right side
   39,966.42x = 1,216,494,396.30
5. Step 5: Solve for x
   x = 1,216,494,396.30/39,966.42
6. Step 6: Final answer
   x = 30,437.91