Finding the Fourth Proportional to 10,201.43, 15,302.31 and 2,805.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,201.43 : 15,302.31 = 2,805.83 : x
2. Step 2: Convert to fraction form
   10,201.43/15,302.31 = 2,805.83/x
3. Step 3: Cross multiply
   10,201.43x = 15,302.31 × 2,805.83
4. Step 4: Simplify right side
   10,201.43x = 42,935,603.96
5. Step 5: Solve for x
   x = 42,935,603.96/10,201.43
6. Step 6: Final answer
   x = 4,208.78