Finding the Fourth Proportional to 394,956.00, 592,078.37 and 142,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   394,956.00 : 592,078.37 = 142,058.72 : x
2. Step 2: Convert to fraction form
   394,956.00/592,078.37 = 142,058.72/x
3. Step 3: Cross multiply
   394,956.00x = 592,078.37 × 142,058.72
4. Step 4: Simplify right side
   394,956.00x = 84,109,895,210.91
5. Step 5: Solve for x
   x = 84,109,895,210.91/394,956.00
6. Step 6: Final answer
   x = 212,960.17