Finding the Fourth Proportional to 342,148.56, 472,162.17 and 189,193.42

Step by Step Solution

1. Step 1: Write the proportion equation
   342,148.56 : 472,162.17 = 189,193.42 : x
2. Step 2: Convert to fraction form
   342,148.56/472,162.17 = 189,193.42/x
3. Step 3: Cross multiply
   342,148.56x = 472,162.17 × 189,193.42
4. Step 4: Simplify right side
   342,148.56x = 89,329,975,736.92
5. Step 5: Solve for x
   x = 89,329,975,736.92/342,148.56
6. Step 6: Final answer
   x = 261,085.35