Finding the Fourth Proportional to 608,185.32, 839,111.52 and 424,419

Step by Step Solution

1. Step 1: Write the proportion equation
   608,185.32 : 839,111.52 = 424,419 : x
2. Step 2: Convert to fraction form
   608,185.32/839,111.52 = 424,419/x
3. Step 3: Cross multiply
   608,185.32x = 839,111.52 × 424,419
4. Step 4: Simplify right side
   608,185.32x = 356,134,872,206.88
5. Step 5: Solve for x
   x = 356,134,872,206.88/608,185.32
6. Step 6: Final answer
   x = 585,569.66