Finding the Fourth Proportional to 82,180.56, 123,270.57 and 19,851.06

Step by Step Solution

1. Step 1: Write the proportion equation
   82,180.56 : 123,270.57 = 19,851.06 : x
2. Step 2: Convert to fraction form
   82,180.56/123,270.57 = 19,851.06/x
3. Step 3: Cross multiply
   82,180.56x = 123,270.57 × 19,851.06
4. Step 4: Simplify right side
   82,180.56x = 2,447,051,481.30
5. Step 5: Solve for x
   x = 2,447,051,481.30/82,180.56
6. Step 6: Final answer
   x = 29,776.52