Finding the Fourth Proportional to 342,435.85, 472,552.37 and 189,470.05

Step by Step Solution

1. Step 1: Write the proportion equation
   342,435.85 : 472,552.37 = 189,470.05 : x
2. Step 2: Convert to fraction form
   342,435.85/472,552.37 = 189,470.05/x
3. Step 3: Cross multiply
   342,435.85x = 472,552.37 × 189,470.05
4. Step 4: Simplify right side
   342,435.85x = 89,534,521,171.52
5. Step 5: Solve for x
   x = 89,534,521,171.52/342,435.85
6. Step 6: Final answer
   x = 261,463.63