Finding the Fourth Proportional to 194,894, 268,953.86 and 105,470

Step by Step Solution

1. Step 1: Write the proportion equation
   194,894 : 268,953.86 = 105,470 : x
2. Step 2: Convert to fraction form
   194,894/268,953.86 = 105,470/x
3. Step 3: Cross multiply
   194,894x = 268,953.86 × 105,470
4. Step 4: Simplify right side
   194,894x = 28,366,563,086.85
5. Step 5: Solve for x
   x = 28,366,563,086.85/194,894
6. Step 6: Final answer
   x = 145,548.67