Finding the Fourth Proportional to 194,906.50, 268,971 and 105,482.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,906.50 : 268,971 = 105,482.50 : x
2. Step 2: Convert to fraction form
   194,906.50/268,971 = 105,482.50/x
3. Step 3: Cross multiply
   194,906.50x = 268,971 × 105,482.50
4. Step 4: Simplify right side
   194,906.50x = 28,371,733,507.50
5. Step 5: Solve for x
   x = 28,371,733,507.50/194,906.50
6. Step 6: Final answer
   x = 145,565.87