Finding the Fourth Proportional to 50,305.12, 69,426.54 and 31,179.80

Step by Step Solution

1. Step 1: Write the proportion equation
   50,305.12 : 69,426.54 = 31,179.80 : x
2. Step 2: Convert to fraction form
   50,305.12/69,426.54 = 31,179.80/x
3. Step 3: Cross multiply
   50,305.12x = 69,426.54 × 31,179.80
4. Step 4: Simplify right side
   50,305.12x = 2,164,705,631.89
5. Step 5: Solve for x
   x = 2,164,705,631.89/50,305.12
6. Step 6: Final answer
   x = 43,031.52