Finding the Fourth Proportional to 194,677.31, 268,654.69 and 105,253.31

Step by Step Solution

1. Step 1: Write the proportion equation
   194,677.31 : 268,654.69 = 105,253.31 : x
2. Step 2: Convert to fraction form
   194,677.31/268,654.69 = 105,253.31/x
3. Step 3: Cross multiply
   194,677.31x = 268,654.69 × 105,253.31
4. Step 4: Simplify right side
   194,677.31x = 28,276,796,172.73
5. Step 5: Solve for x
   x = 28,276,796,172.73/194,677.31
6. Step 6: Final answer
   x = 145,249.57