Finding the Fourth Proportional to 72,304.92, 99,730.67 and 49,603.86

Step by Step Solution

1. Step 1: Write the proportion equation
   72,304.92 : 99,730.67 = 49,603.86 : x
2. Step 2: Convert to fraction form
   72,304.92/99,730.67 = 49,603.86/x
3. Step 3: Cross multiply
   72,304.92x = 99,730.67 × 49,603.86
4. Step 4: Simplify right side
   72,304.92x = 4,947,025,944.37
5. Step 5: Solve for x
   x = 4,947,025,944.37/72,304.92
6. Step 6: Final answer
   x = 68,418.94