Finding the Fourth Proportional to 9,696.60, 14,544.89 and 3,123.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,696.60 : 14,544.89 = 3,123.75 : x
2. Step 2: Convert to fraction form
   9,696.60/14,544.89 = 3,123.75/x
3. Step 3: Cross multiply
   9,696.60x = 14,544.89 × 3,123.75
4. Step 4: Simplify right side
   9,696.60x = 45,434,584.52
5. Step 5: Solve for x
   x = 45,434,584.52/9,696.60
6. Step 6: Final answer
   x = 4,685.62