Finding the Fourth Proportional to 82,105.50, 123,158.28 and 19,776

Step by Step Solution

1. Step 1: Write the proportion equation
   82,105.50 : 123,158.28 = 19,776 : x
2. Step 2: Convert to fraction form
   82,105.50/123,158.28 = 19,776/x
3. Step 3: Cross multiply
   82,105.50x = 123,158.28 × 19,776
4. Step 4: Simplify right side
   82,105.50x = 2,435,578,145.28
5. Step 5: Solve for x
   x = 2,435,578,145.28/82,105.50
6. Step 6: Final answer
   x = 29,664.01