Finding the Fourth Proportional to 144,018.45, 198,743.76 and 79,488.18

Step by Step Solution

1. Step 1: Write the proportion equation
   144,018.45 : 198,743.76 = 79,488.18 : x
2. Step 2: Convert to fraction form
   144,018.45/198,743.76 = 79,488.18/x
3. Step 3: Cross multiply
   144,018.45x = 198,743.76 × 79,488.18
4. Step 4: Simplify right side
   144,018.45x = 15,797,779,768.76
5. Step 5: Solve for x
   x = 15,797,779,768.76/144,018.45
6. Step 6: Final answer
   x = 109,692.75