Finding the Fourth Proportional to 342,141.63, 472,136.38 and 189,170.63

Step by Step Solution

1. Step 1: Write the proportion equation
   342,141.63 : 472,136.38 = 189,170.63 : x
2. Step 2: Convert to fraction form
   342,141.63/472,136.38 = 189,170.63/x
3. Step 3: Cross multiply
   342,141.63x = 472,136.38 × 189,170.63
4. Step 4: Simplify right side
   342,141.63x = 89,314,336,450.52
5. Step 5: Solve for x
   x = 89,314,336,450.52/342,141.63
6. Step 6: Final answer
   x = 261,044.93