Finding the Fourth Proportional to 123,017.72, 184,542.18 and 48,128.25

Step by Step Solution

1. Step 1: Write the proportion equation
   123,017.72 : 184,542.18 = 48,128.25 : x
2. Step 2: Convert to fraction form
   123,017.72/184,542.18 = 48,128.25/x
3. Step 3: Cross multiply
   123,017.72x = 184,542.18 × 48,128.25
4. Step 4: Simplify right side
   123,017.72x = 8,881,692,174.59
5. Step 5: Solve for x
   x = 8,881,692,174.59/123,017.72
6. Step 6: Final answer
   x = 72,198.48