Finding the Fourth Proportional to 49,833, 74,780.63 and 20,250.83

Step by Step Solution

1. Step 1: Write the proportion equation
   49,833 : 74,780.63 = 20,250.83 : x
2. Step 2: Convert to fraction form
   49,833/74,780.63 = 20,250.83/x
3. Step 3: Cross multiply
   49,833x = 74,780.63 × 20,250.83
4. Step 4: Simplify right side
   49,833x = 1,514,369,350.27
5. Step 5: Solve for x
   x = 1,514,369,350.27/49,833
6. Step 6: Final answer
   x = 30,388.89