Finding the Fourth Proportional to 342,517.38, 472,674.89 and 189,566.12

Step by Step Solution

1. Step 1: Write the proportion equation
   342,517.38 : 472,674.89 = 189,566.12 : x
2. Step 2: Convert to fraction form
   342,517.38/472,674.89 = 189,566.12/x
3. Step 3: Cross multiply
   342,517.38x = 472,674.89 × 189,566.12
4. Step 4: Simplify right side
   342,517.38x = 89,603,141,607.52
5. Step 5: Solve for x
   x = 89,603,141,607.52/342,517.38
6. Step 6: Final answer
   x = 261,601.74