Finding the Fourth Proportional to 108,849.46, 150,274.70 and 72,541.28

Step by Step Solution

1. Step 1: Write the proportion equation
   108,849.46 : 150,274.70 = 72,541.28 : x
2. Step 2: Convert to fraction form
   108,849.46/150,274.70 = 72,541.28/x
3. Step 3: Cross multiply
   108,849.46x = 150,274.70 × 72,541.28
4. Step 4: Simplify right side
   108,849.46x = 10,901,119,089.62
5. Step 5: Solve for x
   x = 10,901,119,089.62/108,849.46
6. Step 6: Final answer
   x = 100,148.58