Finding the Fourth Proportional to 8,946.86, 13,422.71 and 3,103.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,946.86 : 13,422.71 = 3,103.92 : x
2. Step 2: Convert to fraction form
   8,946.86/13,422.71 = 3,103.92/x
3. Step 3: Cross multiply
   8,946.86x = 13,422.71 × 3,103.92
4. Step 4: Simplify right side
   8,946.86x = 41,663,025.78
5. Step 5: Solve for x
   x = 41,663,025.78/8,946.86
6. Step 6: Final answer
   x = 4,656.72