Finding the Fourth Proportional to 40,037.68, 55,250.28 and 22,131.76

Step by Step Solution

1. Step 1: Write the proportion equation
   40,037.68 : 55,250.28 = 22,131.76 : x
2. Step 2: Convert to fraction form
   40,037.68/55,250.28 = 22,131.76/x
3. Step 3: Cross multiply
   40,037.68x = 55,250.28 × 22,131.76
4. Step 4: Simplify right side
   40,037.68x = 1,222,785,936.89
5. Step 5: Solve for x
   x = 1,222,785,936.89/40,037.68
6. Step 6: Final answer
   x = 30,540.88