Finding the Fourth Proportional to 483,005.57, 724,510.86 and 283,185.83

Step by Step Solution

1. Step 1: Write the proportion equation
   483,005.57 : 724,510.86 = 283,185.83 : x
2. Step 2: Convert to fraction form
   483,005.57/724,510.86 = 283,185.83/x
3. Step 3: Cross multiply
   483,005.57x = 724,510.86 × 283,185.83
4. Step 4: Simplify right side
   483,005.57x = 205,171,209,233.11
5. Step 5: Solve for x
   x = 205,171,209,233.11/483,005.57
6. Step 6: Final answer
   x = 424,780.21