Finding the Fourth Proportional to 50,305.94, 69,381.01 and 31,172.43

Step by Step Solution

1. Step 1: Write the proportion equation
   50,305.94 : 69,381.01 = 31,172.43 : x
2. Step 2: Convert to fraction form
   50,305.94/69,381.01 = 31,172.43/x
3. Step 3: Cross multiply
   50,305.94x = 69,381.01 × 31,172.43
4. Step 4: Simplify right side
   50,305.94x = 2,162,774,411.09
5. Step 5: Solve for x
   x = 2,162,774,411.09/50,305.94
6. Step 6: Final answer
   x = 42,992.42