Finding the Fourth Proportional to 443,280, 611,729.76 and 242,076

Step by Step Solution

1. Step 1: Write the proportion equation
   443,280 : 611,729.76 = 242,076 : x
2. Step 2: Convert to fraction form
   443,280/611,729.76 = 242,076/x
3. Step 3: Cross multiply
   443,280x = 611,729.76 × 242,076
4. Step 4: Simplify right side
   443,280x = 148,085,093,381.76
5. Step 5: Solve for x
   x = 148,085,093,381.76/443,280
6. Step 6: Final answer
   x = 334,066.71