Finding the Fourth Proportional to 443,933.18, 612,630.15 and 242,729.18

Step by Step Solution

1. Step 1: Write the proportion equation
   443,933.18 : 612,630.15 = 242,729.18 : x
2. Step 2: Convert to fraction form
   443,933.18/612,630.15 = 242,729.18/x
3. Step 3: Cross multiply
   443,933.18x = 612,630.15 × 242,729.18
4. Step 4: Simplify right side
   443,933.18x = 148,703,213,952.78
5. Step 5: Solve for x
   x = 148,703,213,952.78/443,933.18
6. Step 6: Final answer
   x = 334,967.56