Finding the Fourth Proportional to 463,142.61, 638,933.94 and 272,069.82

Step by Step Solution

1. Step 1: Write the proportion equation
   463,142.61 : 638,933.94 = 272,069.82 : x
2. Step 2: Convert to fraction form
   463,142.61/638,933.94 = 272,069.82/x
3. Step 3: Cross multiply
   463,142.61x = 638,933.94 × 272,069.82
4. Step 4: Simplify right side
   463,142.61x = 173,834,642,047.69
5. Step 5: Solve for x
   x = 173,834,642,047.69/463,142.61
6. Step 6: Final answer
   x = 375,337.18