Finding the Fourth Proportional to 39,976.56, 55,167.30 and 22,071.18

Step by Step Solution

1. Step 1: Write the proportion equation
   39,976.56 : 55,167.30 = 22,071.18 : x
2. Step 2: Convert to fraction form
   39,976.56/55,167.30 = 22,071.18/x
3. Step 3: Cross multiply
   39,976.56x = 55,167.30 × 22,071.18
4. Step 4: Simplify right side
   39,976.56x = 1,217,607,615.29
5. Step 5: Solve for x
   x = 1,217,607,615.29/39,976.56
6. Step 6: Final answer
   x = 30,458.04