Finding the Fourth Proportional to 419,856.58, 629,667.78 and 116,177.59

Step by Step Solution

1. Step 1: Write the proportion equation
   419,856.58 : 629,667.78 = 116,177.59 : x
2. Step 2: Convert to fraction form
   419,856.58/629,667.78 = 116,177.59/x
3. Step 3: Cross multiply
   419,856.58x = 629,667.78 × 116,177.59
4. Step 4: Simplify right side
   419,856.58x = 73,153,285,181.05
5. Step 5: Solve for x
   x = 73,153,285,181.05/419,856.58
6. Step 6: Final answer
   x = 174,233.99