Finding the Fourth Proportional to 39,976.94, 55,167.82 and 22,071.56

Step by Step Solution

1. Step 1: Write the proportion equation
   39,976.94 : 55,167.82 = 22,071.56 : x
2. Step 2: Convert to fraction form
   39,976.94/55,167.82 = 22,071.56/x
3. Step 3: Cross multiply
   39,976.94x = 55,167.82 × 22,071.56
4. Step 4: Simplify right side
   39,976.94x = 1,217,639,463.00
5. Step 5: Solve for x
   x = 1,217,639,463.00/39,976.94
6. Step 6: Final answer
   x = 30,458.55