Finding the Fourth Proportional to 293,724.72, 440,587.50 and 72,108.72

Step by Step Solution

1. Step 1: Write the proportion equation
   293,724.72 : 440,587.50 = 72,108.72 : x
2. Step 2: Convert to fraction form
   293,724.72/440,587.50 = 72,108.72/x
3. Step 3: Cross multiply
   293,724.72x = 440,587.50 × 72,108.72
4. Step 4: Simplify right side
   293,724.72x = 31,770,200,673
5. Step 5: Solve for x
   x = 31,770,200,673/293,724.72
6. Step 6: Final answer
   x = 108,163.18