Finding the Fourth Proportional to 82,085.98, 123,128.99 and 19,756.48

Step by Step Solution

1. Step 1: Write the proportion equation
   82,085.98 : 123,128.99 = 19,756.48 : x
2. Step 2: Convert to fraction form
   82,085.98/123,128.99 = 19,756.48/x
3. Step 3: Cross multiply
   82,085.98x = 123,128.99 × 19,756.48
4. Step 4: Simplify right side
   82,085.98x = 2,432,595,428.36
5. Step 5: Solve for x
   x = 2,432,595,428.36/82,085.98
6. Step 6: Final answer
   x = 29,634.72