Finding the Fourth Proportional to 441,426.72, 609,126.72 and 247,790.10

Step by Step Solution

1. Step 1: Write the proportion equation
   441,426.72 : 609,126.72 = 247,790.10 : x
2. Step 2: Convert to fraction form
   441,426.72/609,126.72 = 247,790.10/x
3. Step 3: Cross multiply
   441,426.72x = 609,126.72 × 247,790.10
4. Step 4: Simplify right side
   441,426.72x = 150,935,570,861.47
5. Step 5: Solve for x
   x = 150,935,570,861.47/441,426.72
6. Step 6: Final answer
   x = 341,926.68