Finding the Fourth Proportional to 296,910.34, 445,359.04 and 72,271.96

Step by Step Solution

1. Step 1: Write the proportion equation
   296,910.34 : 445,359.04 = 72,271.96 : x
2. Step 2: Convert to fraction form
   296,910.34/445,359.04 = 72,271.96/x
3. Step 3: Cross multiply
   296,910.34x = 445,359.04 × 72,271.96
4. Step 4: Simplify right side
   296,910.34x = 32,186,970,724.52
5. Step 5: Solve for x
   x = 32,186,970,724.52/296,910.34
6. Step 6: Final answer
   x = 108,406.37