Finding the Fourth Proportional to 443,301.18, 665,936.01 and 274,945.98

Step by Step Solution

1. Step 1: Write the proportion equation
   443,301.18 : 665,936.01 = 274,945.98 : x
2. Step 2: Convert to fraction form
   443,301.18/665,936.01 = 274,945.98/x
3. Step 3: Cross multiply
   443,301.18x = 665,936.01 × 274,945.98
4. Step 4: Simplify right side
   443,301.18x = 183,096,428,886.74
5. Step 5: Solve for x
   x = 183,096,428,886.74/443,301.18
6. Step 6: Final answer
   x = 413,029.42