Finding the Fourth Proportional to 101,446.62, 139,996.23 and 56,734.62

Step by Step Solution

1. Step 1: Write the proportion equation
   101,446.62 : 139,996.23 = 56,734.62 : x
2. Step 2: Convert to fraction form
   101,446.62/139,996.23 = 56,734.62/x
3. Step 3: Cross multiply
   101,446.62x = 139,996.23 × 56,734.62
4. Step 4: Simplify right side
   101,446.62x = 7,942,632,910.48
5. Step 5: Solve for x
   x = 7,942,632,910.48/101,446.62
6. Step 6: Final answer
   x = 78,293.72