Finding the Fourth Proportional to 82,451.10, 123,530.85 and 69,912.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,451.10 : 123,530.85 = 69,912.30 : x
2. Step 2: Convert to fraction form
   82,451.10/123,530.85 = 69,912.30/x
3. Step 3: Cross multiply
   82,451.10x = 123,530.85 × 69,912.30
4. Step 4: Simplify right side
   82,451.10x = 8,636,325,844.46
5. Step 5: Solve for x
   x = 8,636,325,844.46/82,451.10
6. Step 6: Final answer
   x = 104,744.82