Finding the Fourth Proportional to 611,061.50, 843,264.88 and 342,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   611,061.50 : 843,264.88 = 342,789.50 : x
2. Step 2: Convert to fraction form
   611,061.50/843,264.88 = 342,789.50/x
3. Step 3: Cross multiply
   611,061.50x = 843,264.88 × 342,789.50
4. Step 4: Simplify right side
   611,061.50x = 289,062,346,582.76
5. Step 5: Solve for x
   x = 289,062,346,582.76/611,061.50
6. Step 6: Final answer
   x = 473,049.52