Finding the Fourth Proportional to 96,020.10, 144,030.15 and 72,692.10

Step by Step Solution

1. Step 1: Write the proportion equation
   96,020.10 : 144,030.15 = 72,692.10 : x
2. Step 2: Convert to fraction form
   96,020.10/144,030.15 = 72,692.10/x
3. Step 3: Cross multiply
   96,020.10x = 144,030.15 × 72,692.10
4. Step 4: Simplify right side
   96,020.10x = 10,469,854,066.82
5. Step 5: Solve for x
   x = 10,469,854,066.82/96,020.10
6. Step 6: Final answer
   x = 109,038.15