Finding the Fourth Proportional to 72,940.69, 100,596.09 and 50,315.77

Step by Step Solution

1. Step 1: Write the proportion equation
   72,940.69 : 100,596.09 = 50,315.77 : x
2. Step 2: Convert to fraction form
   72,940.69/100,596.09 = 50,315.77/x
3. Step 3: Cross multiply
   72,940.69x = 100,596.09 × 50,315.77
4. Step 4: Simplify right side
   72,940.69x = 5,061,569,727.34
5. Step 5: Solve for x
   x = 5,061,569,727.34/72,940.69
6. Step 6: Final answer
   x = 69,392.95