Finding the Fourth Proportional to 79,632.72, 109,794.96 and 72,939.96

Step by Step Solution

1. Step 1: Write the proportion equation
   79,632.72 : 109,794.96 = 72,939.96 : x
2. Step 2: Convert to fraction form
   79,632.72/109,794.96 = 72,939.96/x
3. Step 3: Cross multiply
   79,632.72x = 109,794.96 × 72,939.96
4. Step 4: Simplify right side
   79,632.72x = 8,008,439,990.60
5. Step 5: Solve for x
   x = 8,008,439,990.60/79,632.72
6. Step 6: Final answer
   x = 100,567.20