Finding the Fourth Proportional to 342,273.89, 472,354.59 and 189,311.46

Step by Step Solution

1. Step 1: Write the proportion equation
   342,273.89 : 472,354.59 = 189,311.46 : x
2. Step 2: Convert to fraction form
   342,273.89/472,354.59 = 189,311.46/x
3. Step 3: Cross multiply
   342,273.89x = 472,354.59 × 189,311.46
4. Step 4: Simplify right side
   342,273.89x = 89,422,137,070.60
5. Step 5: Solve for x
   x = 89,422,137,070.60/342,273.89
6. Step 6: Final answer
   x = 261,259.01