Finding the Fourth Proportional to 9,123.50, 13,690.69 and 3,858.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.50 : 13,690.69 = 3,858.23 : x
2. Step 2: Convert to fraction form
   9,123.50/13,690.69 = 3,858.23/x
3. Step 3: Cross multiply
   9,123.50x = 13,690.69 × 3,858.23
4. Step 4: Simplify right side
   9,123.50x = 52,821,855.46
5. Step 5: Solve for x
   x = 52,821,855.46/9,123.50
6. Step 6: Final answer
   x = 5,789.65