Finding the Fourth Proportional to 443,659.72, 612,249.06 and 242,455.72

Step by Step Solution

1. Step 1: Write the proportion equation
   443,659.72 : 612,249.06 = 242,455.72 : x
2. Step 2: Convert to fraction form
   443,659.72/612,249.06 = 242,455.72/x
3. Step 3: Cross multiply
   443,659.72x = 612,249.06 × 242,455.72
4. Step 4: Simplify right side
   443,659.72x = 148,443,286,661.62
5. Step 5: Solve for x
   x = 148,443,286,661.62/443,659.72
6. Step 6: Final answer
   x = 334,588.15