Finding the Fourth Proportional to 10,536.17, 15,805.76 and 3,142.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,536.17 : 15,805.76 = 3,142.89 : x
2. Step 2: Convert to fraction form
   10,536.17/15,805.76 = 3,142.89/x
3. Step 3: Cross multiply
   10,536.17x = 15,805.76 × 3,142.89
4. Step 4: Simplify right side
   10,536.17x = 49,675,749.33
5. Step 5: Solve for x
   x = 49,675,749.33/10,536.17
6. Step 6: Final answer
   x = 4,714.78