Finding the Fourth Proportional to 194,846.50, 268,888.17 and 105,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,846.50 : 268,888.17 = 105,422.50 : x
2. Step 2: Convert to fraction form
   194,846.50/268,888.17 = 105,422.50/x
3. Step 3: Cross multiply
   194,846.50x = 268,888.17 × 105,422.50
4. Step 4: Simplify right side
   194,846.50x = 28,346,863,101.83
5. Step 5: Solve for x
   x = 28,346,863,101.83/194,846.50
6. Step 6: Final answer
   x = 145,483.05