Finding the Fourth Proportional to 462,996, 639,016.29 and 272,009.34

Step by Step Solution

1. Step 1: Write the proportion equation
   462,996 : 639,016.29 = 272,009.34 : x
2. Step 2: Convert to fraction form
   462,996/639,016.29 = 272,009.34/x
3. Step 3: Cross multiply
   462,996x = 639,016.29 × 272,009.34
4. Step 4: Simplify right side
   462,996x = 173,818,399,292.15
5. Step 5: Solve for x
   x = 173,818,399,292.15/462,996
6. Step 6: Final answer
   x = 375,420.95