Finding the Fourth Proportional to 422,817.57, 634,158.82 and 123,228.03

Step by Step Solution

1. Step 1: Write the proportion equation
   422,817.57 : 634,158.82 = 123,228.03 : x
2. Step 2: Convert to fraction form
   422,817.57/634,158.82 = 123,228.03/x
3. Step 3: Cross multiply
   422,817.57x = 634,158.82 × 123,228.03
4. Step 4: Simplify right side
   422,817.57x = 78,146,144,627.86
5. Step 5: Solve for x
   x = 78,146,144,627.86/422,817.57
6. Step 6: Final answer
   x = 184,822.37