Finding the Fourth Proportional to 82,103.34, 123,193.29 and 80,776.56

Step by Step Solution

1. Step 1: Write the proportion equation
   82,103.34 : 123,193.29 = 80,776.56 : x
2. Step 2: Convert to fraction form
   82,103.34/123,193.29 = 80,776.56/x
3. Step 3: Cross multiply
   82,103.34x = 123,193.29 × 80,776.56
4. Step 4: Simplify right side
   82,103.34x = 9,951,130,181.28
5. Step 5: Solve for x
   x = 9,951,130,181.28/82,103.34
6. Step 6: Final answer
   x = 121,202.50