Finding the Fourth Proportional to 263,949.50, 395,990.27 and 76,961

Step by Step Solution

1. Step 1: Write the proportion equation
   263,949.50 : 395,990.27 = 76,961 : x
2. Step 2: Convert to fraction form
   263,949.50/395,990.27 = 76,961/x
3. Step 3: Cross multiply
   263,949.50x = 395,990.27 × 76,961
4. Step 4: Simplify right side
   263,949.50x = 30,475,806,784.67
5. Step 5: Solve for x
   x = 30,475,806,784.67/263,949.50
6. Step 6: Final answer
   x = 115,460.75