Finding the Fourth Proportional to 144,016.34, 198,778.12 and 87,475.10

Step by Step Solution

1. Step 1: Write the proportion equation
   144,016.34 : 198,778.12 = 87,475.10 : x
2. Step 2: Convert to fraction form
   144,016.34/198,778.12 = 87,475.10/x
3. Step 3: Cross multiply
   144,016.34x = 198,778.12 × 87,475.10
4. Step 4: Simplify right side
   144,016.34x = 17,388,134,712.23
5. Step 5: Solve for x
   x = 17,388,134,712.23/144,016.34
6. Step 6: Final answer
   x = 120,737.24