Finding the Fourth Proportional to 72,331.89, 99,751.42 and 49,630.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72,331.89 : 99,751.42 = 49,630.83 : x
2. Step 2: Convert to fraction form
   72,331.89/99,751.42 = 49,630.83/x
3. Step 3: Cross multiply
   72,331.89x = 99,751.42 × 49,630.83
4. Step 4: Simplify right side
   72,331.89x = 4,950,745,768.28
5. Step 5: Solve for x
   x = 4,950,745,768.28/72,331.89
6. Step 6: Final answer
   x = 68,444.86