Finding the Fourth Proportional to 342,136.38, 472,139.82 and 189,170.54

Step by Step Solution

1. Step 1: Write the proportion equation
   342,136.38 : 472,139.82 = 189,170.54 : x
2. Step 2: Convert to fraction form
   342,136.38/472,139.82 = 189,170.54/x
3. Step 3: Cross multiply
   342,136.38x = 472,139.82 × 189,170.54
4. Step 4: Simplify right side
   342,136.38x = 89,314,942,344.20
5. Step 5: Solve for x
   x = 89,314,942,344.20/342,136.38
6. Step 6: Final answer
   x = 261,050.71