Finding the Fourth Proportional to 50,853.98, 70,156.40 and 30,699.38

Step by Step Solution

1. Step 1: Write the proportion equation
   50,853.98 : 70,156.40 = 30,699.38 : x
2. Step 2: Convert to fraction form
   50,853.98/70,156.40 = 30,699.38/x
3. Step 3: Cross multiply
   50,853.98x = 70,156.40 × 30,699.38
4. Step 4: Simplify right side
   50,853.98x = 2,153,757,983.03
5. Step 5: Solve for x
   x = 2,153,757,983.03/50,853.98
6. Step 6: Final answer
   x = 42,351.81