Finding the Fourth Proportional to 194,815, 268,845.06 and 105,391

Step by Step Solution

1. Step 1: Write the proportion equation
   194,815 : 268,845.06 = 105,391 : x
2. Step 2: Convert to fraction form
   194,815/268,845.06 = 105,391/x
3. Step 3: Cross multiply
   194,815x = 268,845.06 × 105,391
4. Step 4: Simplify right side
   194,815x = 28,333,849,718.46
5. Step 5: Solve for x
   x = 28,333,849,718.46/194,815
6. Step 6: Final answer
   x = 145,439.77