Finding the Fourth Proportional to 755,105.58, 1,042,069.34 and 428,432.37

Step by Step Solution

1. Step 1: Write the proportion equation
   755,105.58 : 1,042,069.34 = 428,432.37 : x
2. Step 2: Convert to fraction form
   755,105.58/1,042,069.34 = 428,432.37/x
3. Step 3: Cross multiply
   755,105.58x = 1,042,069.34 × 428,432.37
4. Step 4: Simplify right side
   755,105.58x = 446,456,234,898.37
5. Step 5: Solve for x
   x = 446,456,234,898.37/755,105.58
6. Step 6: Final answer
   x = 591,250.08