Finding the Fourth Proportional to 82,104.50, 123,156.78 and 19,775

Step by Step Solution

1. Step 1: Write the proportion equation
   82,104.50 : 123,156.78 = 19,775 : x
2. Step 2: Convert to fraction form
   82,104.50/123,156.78 = 19,775/x
3. Step 3: Cross multiply
   82,104.50x = 123,156.78 × 19,775
4. Step 4: Simplify right side
   82,104.50x = 2,435,425,324.50
5. Step 5: Solve for x
   x = 2,435,425,324.50/82,104.50
6. Step 6: Final answer
   x = 29,662.51