Finding the Fourth Proportional to 394,663.22, 591,928.83 and 141,892.18

Step by Step Solution

1. Step 1: Write the proportion equation
   394,663.22 : 591,928.83 = 141,892.18 : x
2. Step 2: Convert to fraction form
   394,663.22/591,928.83 = 141,892.18/x
3. Step 3: Cross multiply
   394,663.22x = 591,928.83 × 141,892.18
4. Step 4: Simplify right side
   394,663.22x = 83,990,072,093.55
5. Step 5: Solve for x
   x = 83,990,072,093.55/394,663.22
6. Step 6: Final answer
   x = 212,814.54