Finding the Fourth Proportional to 443,358.72, 611,838.72 and 242,153.28

Step by Step Solution

1. Step 1: Write the proportion equation
   443,358.72 : 611,838.72 = 242,153.28 : x
2. Step 2: Convert to fraction form
   443,358.72/611,838.72 = 242,153.28/x
3. Step 3: Cross multiply
   443,358.72x = 611,838.72 × 242,153.28
4. Step 4: Simplify right side
   443,358.72x = 148,158,752,879.00
5. Step 5: Solve for x
   x = 148,158,752,879.00/443,358.72
6. Step 6: Final answer
   x = 334,173.54