Finding the Fourth Proportional to 342,113.27, 472,107.98 and 189,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,113.27 : 472,107.98 = 189,147.50 : x
2. Step 2: Convert to fraction form
   342,113.27/472,107.98 = 189,147.50/x
3. Step 3: Cross multiply
   342,113.27x = 472,107.98 × 189,147.50
4. Step 4: Simplify right side
   342,113.27x = 89,298,042,965.83
5. Step 5: Solve for x
   x = 89,298,042,965.83/342,113.27
6. Step 6: Final answer
   x = 261,018.94