Finding the Fourth Proportional to 155,722.72, 233,401.87 and 71,491.03

Step by Step Solution

1. Step 1: Write the proportion equation
   155,722.72 : 233,401.87 = 71,491.03 : x
2. Step 2: Convert to fraction form
   155,722.72/233,401.87 = 71,491.03/x
3. Step 3: Cross multiply
   155,722.72x = 233,401.87 × 71,491.03
4. Step 4: Simplify right side
   155,722.72x = 16,686,138,923.22
5. Step 5: Solve for x
   x = 16,686,138,923.22/155,722.72
6. Step 6: Final answer
   x = 107,152.89