Finding the Fourth Proportional to 72,481.50, 108,795.96 and 49,993.74

Step by Step Solution

1. Step 1: Write the proportion equation
   72,481.50 : 108,795.96 = 49,993.74 : x
2. Step 2: Convert to fraction form
   72,481.50/108,795.96 = 49,993.74/x
3. Step 3: Cross multiply
   72,481.50x = 108,795.96 × 49,993.74
4. Step 4: Simplify right side
   72,481.50x = 5,439,116,937.29
5. Step 5: Solve for x
   x = 5,439,116,937.29/72,481.50
6. Step 6: Final answer
   x = 75,041.45