Finding the Fourth Proportional to 50,402.79, 69,554.84 and 31,550.31

Step by Step Solution

1. Step 1: Write the proportion equation
   50,402.79 : 69,554.84 = 31,550.31 : x
2. Step 2: Convert to fraction form
   50,402.79/69,554.84 = 31,550.31/x
3. Step 3: Cross multiply
   50,402.79x = 69,554.84 × 31,550.31
4. Step 4: Simplify right side
   50,402.79x = 2,194,476,606.25
5. Step 5: Solve for x
   x = 2,194,476,606.25/50,402.79
6. Step 6: Final answer
   x = 43,538.79