Finding the Fourth Proportional to 9,042.42, 13,565.16 and 3,118.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.42 : 13,565.16 = 3,118.71 : x
2. Step 2: Convert to fraction form
   9,042.42/13,565.16 = 3,118.71/x
3. Step 3: Cross multiply
   9,042.42x = 13,565.16 × 3,118.71
4. Step 4: Simplify right side
   9,042.42x = 42,305,800.14
5. Step 5: Solve for x
   x = 42,305,800.14/9,042.42
6. Step 6: Final answer
   x = 4,678.59