Finding the Fourth Proportional to 610,805.92, 842,664.72 and 440,667.04

Step by Step Solution

1. Step 1: Write the proportion equation
   610,805.92 : 842,664.72 = 440,667.04 : x
2. Step 2: Convert to fraction form
   610,805.92/842,664.72 = 440,667.04/x
3. Step 3: Cross multiply
   610,805.92x = 842,664.72 × 440,667.04
4. Step 4: Simplify right side
   610,805.92x = 371,334,567,874.83
5. Step 5: Solve for x
   x = 371,334,567,874.83/610,805.92
6. Step 6: Final answer
   x = 607,941.99