Finding the Fourth Proportional to 394,682.59, 591,876.91 and 141,894.10

Step by Step Solution

1. Step 1: Write the proportion equation
   394,682.59 : 591,876.91 = 141,894.10 : x
2. Step 2: Convert to fraction form
   394,682.59/591,876.91 = 141,894.10/x
3. Step 3: Cross multiply
   394,682.59x = 591,876.91 × 141,894.10
4. Step 4: Simplify right side
   394,682.59x = 83,983,837,786.38
5. Step 5: Solve for x
   x = 83,983,837,786.38/394,682.59
6. Step 6: Final answer
   x = 212,788.30