Finding the Fourth Proportional to 456,947.06, 685,563.98 and 274,787.52

Step by Step Solution

1. Step 1: Write the proportion equation
   456,947.06 : 685,563.98 = 274,787.52 : x
2. Step 2: Convert to fraction form
   456,947.06/685,563.98 = 274,787.52/x
3. Step 3: Cross multiply
   456,947.06x = 685,563.98 × 274,787.52
4. Step 4: Simplify right side
   456,947.06x = 188,384,424,491.59
5. Step 5: Solve for x
   x = 188,384,424,491.59/456,947.06
6. Step 6: Final answer
   x = 412,267.51