Finding the Fourth Proportional to 8,746.25, 13,120.69 and 3,123.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,746.25 : 13,120.69 = 3,123.48 : x
2. Step 2: Convert to fraction form
   8,746.25/13,120.69 = 3,123.48/x
3. Step 3: Cross multiply
   8,746.25x = 13,120.69 × 3,123.48
4. Step 4: Simplify right side
   8,746.25x = 40,982,245.60
5. Step 5: Solve for x
   x = 40,982,245.60/8,746.25
6. Step 6: Final answer
   x = 4,685.69