Finding the Fourth Proportional to 10,085.69, 15,129.33 and 3,066.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,085.69 : 15,129.33 = 3,066.31 : x
2. Step 2: Convert to fraction form
   10,085.69/15,129.33 = 3,066.31/x
3. Step 3: Cross multiply
   10,085.69x = 15,129.33 × 3,066.31
4. Step 4: Simplify right side
   10,085.69x = 46,391,215.87
5. Step 5: Solve for x
   x = 46,391,215.87/10,085.69
6. Step 6: Final answer
   x = 4,599.71