Finding the Fourth Proportional to 194,853.50, 268,898.02 and 105,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,853.50 : 268,898.02 = 105,429.50 : x
2. Step 2: Convert to fraction form
   194,853.50/268,898.02 = 105,429.50/x
3. Step 3: Cross multiply
   194,853.50x = 268,898.02 × 105,429.50
4. Step 4: Simplify right side
   194,853.50x = 28,349,783,799.59
5. Step 5: Solve for x
   x = 28,349,783,799.59/194,853.50
6. Step 6: Final answer
   x = 145,492.81