Finding the Fourth Proportional to 101,456, 140,009.76 and 56,744

Step by Step Solution

1. Step 1: Write the proportion equation
   101,456 : 140,009.76 = 56,744 : x
2. Step 2: Convert to fraction form
   101,456/140,009.76 = 56,744/x
3. Step 3: Cross multiply
   101,456x = 140,009.76 × 56,744
4. Step 4: Simplify right side
   101,456x = 7,944,713,821.44
5. Step 5: Solve for x
   x = 7,944,713,821.44/101,456
6. Step 6: Final answer
   x = 78,306.99