Finding the Fourth Proportional to 638,084.50, 956,430.42 and 314,095.57

Step by Step Solution

1. Step 1: Write the proportion equation
   638,084.50 : 956,430.42 = 314,095.57 : x
2. Step 2: Convert to fraction form
   638,084.50/956,430.42 = 314,095.57/x
3. Step 3: Cross multiply
   638,084.50x = 956,430.42 × 314,095.57
4. Step 4: Simplify right side
   638,084.50x = 300,410,559,580.59
5. Step 5: Solve for x
   x = 300,410,559,580.59/638,084.50
6. Step 6: Final answer
   x = 470,800.59