Finding the Fourth Proportional to 10,085.90, 15,128.96 and 3,067.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,085.90 : 15,128.96 = 3,067.06 : x
2. Step 2: Convert to fraction form
   10,085.90/15,128.96 = 3,067.06/x
3. Step 3: Cross multiply
   10,085.90x = 15,128.96 × 3,067.06
4. Step 4: Simplify right side
   10,085.90x = 46,401,344.75
5. Step 5: Solve for x
   x = 46,401,344.75/10,085.90
6. Step 6: Final answer
   x = 4,600.62