Finding the Fourth Proportional to 72,175.92, 99,622.89 and 49,518.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,175.92 : 99,622.89 = 49,518.60 : x
2. Step 2: Convert to fraction form
   72,175.92/99,622.89 = 49,518.60/x
3. Step 3: Cross multiply
   72,175.92x = 99,622.89 × 49,518.60
4. Step 4: Simplify right side
   72,175.92x = 4,933,186,040.75
5. Step 5: Solve for x
   x = 4,933,186,040.75/72,175.92
6. Step 6: Final answer
   x = 68,349.47