Finding the Fourth Proportional to 342,112.57, 472,096.27 and 189,141.85

Step by Step Solution

1. Step 1: Write the proportion equation
   342,112.57 : 472,096.27 = 189,141.85 : x
2. Step 2: Convert to fraction form
   342,112.57/472,096.27 = 189,141.85/x
3. Step 3: Cross multiply
   342,112.57x = 472,096.27 × 189,141.85
4. Step 4: Simplify right side
   342,112.57x = 89,293,161,885.90
5. Step 5: Solve for x
   x = 89,293,161,885.90/342,112.57
6. Step 6: Final answer
   x = 261,005.21