Finding the Fourth Proportional to 104,524.72, 144,179.05 and 87,017.38

Step by Step Solution

1. Step 1: Write the proportion equation
   104,524.72 : 144,179.05 = 87,017.38 : x
2. Step 2: Convert to fraction form
   104,524.72/144,179.05 = 87,017.38/x
3. Step 3: Cross multiply
   104,524.72x = 144,179.05 × 87,017.38
4. Step 4: Simplify right side
   104,524.72x = 12,546,083,181.89
5. Step 5: Solve for x
   x = 12,546,083,181.89/104,524.72
6. Step 6: Final answer
   x = 120,029.82