Finding the Fourth Proportional to 50,842.50, 70,162.65 and 30,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,842.50 : 70,162.65 = 30,970.50 : x
2. Step 2: Convert to fraction form
   50,842.50/70,162.65 = 30,970.50/x
3. Step 3: Cross multiply
   50,842.50x = 70,162.65 × 30,970.50
4. Step 4: Simplify right side
   50,842.50x = 2,172,972,351.83
5. Step 5: Solve for x
   x = 2,172,972,351.83/50,842.50
6. Step 6: Final answer
   x = 42,739.29