Finding the Fourth Proportional to 40,128.94, 55,377.82 and 23,133.09

Step by Step Solution

1. Step 1: Write the proportion equation
   40,128.94 : 55,377.82 = 23,133.09 : x
2. Step 2: Convert to fraction form
   40,128.94/55,377.82 = 23,133.09/x
3. Step 3: Cross multiply
   40,128.94x = 55,377.82 × 23,133.09
4. Step 4: Simplify right side
   40,128.94x = 1,281,060,094.06
5. Step 5: Solve for x
   x = 1,281,060,094.06/40,128.94
6. Step 6: Final answer
   x = 31,923.60