Finding the Fourth Proportional to 8,945.76, 13,418.52 and 3,102.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,945.76 : 13,418.52 = 3,102.42 : x
2. Step 2: Convert to fraction form
   8,945.76/13,418.52 = 3,102.42/x
3. Step 3: Cross multiply
   8,945.76x = 13,418.52 × 3,102.42
4. Step 4: Simplify right side
   8,945.76x = 41,629,884.82
5. Step 5: Solve for x
   x = 41,629,884.82/8,945.76
6. Step 6: Final answer
   x = 4,653.59