Finding the Fourth Proportional to 194,612, 268,564.59 and 105,188

Step by Step Solution

1. Step 1: Write the proportion equation
   194,612 : 268,564.59 = 105,188 : x
2. Step 2: Convert to fraction form
   194,612/268,564.59 = 105,188/x
3. Step 3: Cross multiply
   194,612x = 268,564.59 × 105,188
4. Step 4: Simplify right side
   194,612x = 28,249,772,092.92
5. Step 5: Solve for x
   x = 28,249,772,092.92/194,612
6. Step 6: Final answer
   x = 145,159.46