Finding the Fourth Proportional to 9,382.86, 14,079.42 and 3,144.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,382.86 : 14,079.42 = 3,144.78 : x
2. Step 2: Convert to fraction form
   9,382.86/14,079.42 = 3,144.78/x
3. Step 3: Cross multiply
   9,382.86x = 14,079.42 × 3,144.78
4. Step 4: Simplify right side
   9,382.86x = 44,276,678.43
5. Step 5: Solve for x
   x = 44,276,678.43/9,382.86
6. Step 6: Final answer
   x = 4,718.89