Finding the Fourth Proportional to 194,737.50, 268,738.56 and 105,313.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,737.50 : 268,738.56 = 105,313.50 : x
2. Step 2: Convert to fraction form
   194,737.50/268,738.56 = 105,313.50/x
3. Step 3: Cross multiply
   194,737.50x = 268,738.56 × 105,313.50
4. Step 4: Simplify right side
   194,737.50x = 28,301,798,338.56
5. Step 5: Solve for x
   x = 28,301,798,338.56/194,737.50
6. Step 6: Final answer
   x = 145,333.07