Finding the Fourth Proportional to 443,832, 612,488.18 and 242,628

Step by Step Solution

1. Step 1: Write the proportion equation
   443,832 : 612,488.18 = 242,628 : x
2. Step 2: Convert to fraction form
   443,832/612,488.18 = 242,628/x
3. Step 3: Cross multiply
   443,832x = 612,488.18 × 242,628
4. Step 4: Simplify right side
   443,832x = 148,606,782,137.04
5. Step 5: Solve for x
   x = 148,606,782,137.04/443,832
6. Step 6: Final answer
   x = 334,826.65