Finding the Fourth Proportional to 443,724.76, 612,339.96 and 242,520.76

Step by Step Solution

1. Step 1: Write the proportion equation
   443,724.76 : 612,339.96 = 242,520.76 : x
2. Step 2: Convert to fraction form
   443,724.76/612,339.96 = 242,520.76/x
3. Step 3: Cross multiply
   443,724.76x = 612,339.96 × 242,520.76
4. Step 4: Simplify right side
   443,724.76x = 148,505,152,477.57
5. Step 5: Solve for x
   x = 148,505,152,477.57/443,724.76
6. Step 6: Final answer
   x = 334,678.53