Finding the Fourth Proportional to 342,590.45, 472,737.83 and 189,604.33

Step by Step Solution

1. Step 1: Write the proportion equation
   342,590.45 : 472,737.83 = 189,604.33 : x
2. Step 2: Convert to fraction form
   342,590.45/472,737.83 = 189,604.33/x
3. Step 3: Cross multiply
   342,590.45x = 472,737.83 × 189,604.33
4. Step 4: Simplify right side
   342,590.45x = 89,633,139,522.80
5. Step 5: Solve for x
   x = 89,633,139,522.80/342,590.45
6. Step 6: Final answer
   x = 261,633.50