Finding the Fourth Proportional to 352,314.72, 486,187.94 and 214,443.72

Step by Step Solution

1. Step 1: Write the proportion equation
   352,314.72 : 486,187.94 = 214,443.72 : x
2. Step 2: Convert to fraction form
   352,314.72/486,187.94 = 214,443.72/x
3. Step 3: Cross multiply
   352,314.72x = 486,187.94 × 214,443.72
4. Step 4: Simplify right side
   352,314.72x = 104,259,949,400.52
5. Step 5: Solve for x
   x = 104,259,949,400.52/352,314.72
6. Step 6: Final answer
   x = 295,928.45