Finding the Fourth Proportional to 342,142.23, 472,147.91 and 189,176.54

Step by Step Solution

1. Step 1: Write the proportion equation
   342,142.23 : 472,147.91 = 189,176.54 : x
2. Step 2: Convert to fraction form
   342,142.23/472,147.91 = 189,176.54/x
3. Step 3: Cross multiply
   342,142.23x = 472,147.91 × 189,176.54
4. Step 4: Simplify right side
   342,142.23x = 89,319,307,982.03
5. Step 5: Solve for x
   x = 89,319,307,982.03/342,142.23
6. Step 6: Final answer
   x = 261,059.00