Finding the Fourth Proportional to 444,182.72, 612,972.96 and 242,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   444,182.72 : 612,972.96 = 242,978.72 : x
2. Step 2: Convert to fraction form
   444,182.72/612,972.96 = 242,978.72/x
3. Step 3: Cross multiply
   444,182.72x = 612,972.96 × 242,978.72
4. Step 4: Simplify right side
   444,182.72x = 148,939,385,215.41
5. Step 5: Solve for x
   x = 148,939,385,215.41/444,182.72
6. Step 6: Final answer
   x = 335,311.07