Finding the Fourth Proportional to 443,341.69, 611,826.11 and 242,137.69

Step by Step Solution

1. Step 1: Write the proportion equation
   443,341.69 : 611,826.11 = 242,137.69 : x
2. Step 2: Convert to fraction form
   443,341.69/611,826.11 = 242,137.69/x
3. Step 3: Cross multiply
   443,341.69x = 611,826.11 × 242,137.69
4. Step 4: Simplify right side
   443,341.69x = 148,146,159,124.85
5. Step 5: Solve for x
   x = 148,146,159,124.85/443,341.69
6. Step 6: Final answer
   x = 334,157.97