Finding the Fourth Proportional to 49,945.50, 74,827.89 and 31,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,945.50 : 74,827.89 = 31,216.50 : x
2. Step 2: Convert to fraction form
   49,945.50/74,827.89 = 31,216.50/x
3. Step 3: Cross multiply
   49,945.50x = 74,827.89 × 31,216.50
4. Step 4: Simplify right side
   49,945.50x = 2,335,864,828.19
5. Step 5: Solve for x
   x = 2,335,864,828.19/49,945.50
6. Step 6: Final answer
   x = 46,768.27