Finding the Fourth Proportional to 72,399.68, 99,852.31 and 50,960.39

Step by Step Solution

1. Step 1: Write the proportion equation
   72,399.68 : 99,852.31 = 50,960.39 : x
2. Step 2: Convert to fraction form
   72,399.68/99,852.31 = 50,960.39/x
3. Step 3: Cross multiply
   72,399.68x = 99,852.31 × 50,960.39
4. Step 4: Simplify right side
   72,399.68x = 5,088,512,970.75
5. Step 5: Solve for x
   x = 5,088,512,970.75/72,399.68
6. Step 6: Final answer
   x = 70,283.64