Finding the Fourth Proportional to 82,279.78, 123,419.25 and 19,950.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,279.78 : 123,419.25 = 19,950.28 : x
2. Step 2: Convert to fraction form
   82,279.78/123,419.25 = 19,950.28/x
3. Step 3: Cross multiply
   82,279.78x = 123,419.25 × 19,950.28
4. Step 4: Simplify right side
   82,279.78x = 2,462,248,594.89
5. Step 5: Solve for x
   x = 2,462,248,594.89/82,279.78
6. Step 6: Final answer
   x = 29,925.32