Finding the Fourth Proportional to 443,220.72, 611,646.84 and 242,016.72

Step by Step Solution

1. Step 1: Write the proportion equation
   443,220.72 : 611,646.84 = 242,016.72 : x
2. Step 2: Convert to fraction form
   443,220.72/611,646.84 = 242,016.72/x
3. Step 3: Cross multiply
   443,220.72x = 611,646.84 × 242,016.72
4. Step 4: Simplify right side
   443,220.72x = 148,028,762,015.17
5. Step 5: Solve for x
   x = 148,028,762,015.17/443,220.72
6. Step 6: Final answer
   x = 333,984.30