Finding the Fourth Proportional to 33,139.20, 49,791.83 and 31,146.29

Step by Step Solution

1. Step 1: Write the proportion equation
   33,139.20 : 49,791.83 = 31,146.29 : x
2. Step 2: Convert to fraction form
   33,139.20/49,791.83 = 31,146.29/x
3. Step 3: Cross multiply
   33,139.20x = 49,791.83 × 31,146.29
4. Step 4: Simplify right side
   33,139.20x = 1,550,830,979.16
5. Step 5: Solve for x
   x = 1,550,830,979.16/33,139.20
6. Step 6: Final answer
   x = 46,797.48