Finding the Fourth Proportional to 10,641.86, 15,960.72 and 4,066.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,641.86 : 15,960.72 = 4,066.49 : x
2. Step 2: Convert to fraction form
   10,641.86/15,960.72 = 4,066.49/x
3. Step 3: Cross multiply
   10,641.86x = 15,960.72 × 4,066.49
4. Step 4: Simplify right side
   10,641.86x = 64,904,028.47
5. Step 5: Solve for x
   x = 64,904,028.47/10,641.86
6. Step 6: Final answer
   x = 6,098.94