Finding the Fourth Proportional to 39,931, 55,105.04 and 22,026.49

Step by Step Solution

1. Step 1: Write the proportion equation
   39,931 : 55,105.04 = 22,026.49 : x
2. Step 2: Convert to fraction form
   39,931/55,105.04 = 22,026.49/x
3. Step 3: Cross multiply
   39,931x = 55,105.04 × 22,026.49
4. Step 4: Simplify right side
   39,931x = 1,213,770,612.51
5. Step 5: Solve for x
   x = 1,213,770,612.51/39,931
6. Step 6: Final answer
   x = 30,396.70