Finding the Fourth Proportional to 9,123.29, 13,681.29 and 3,860.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.29 : 13,681.29 = 3,860.72 : x
2. Step 2: Convert to fraction form
   9,123.29/13,681.29 = 3,860.72/x
3. Step 3: Cross multiply
   9,123.29x = 13,681.29 × 3,860.72
4. Step 4: Simplify right side
   9,123.29x = 52,819,629.93
5. Step 5: Solve for x
   x = 52,819,629.93/9,123.29
6. Step 6: Final answer
   x = 5,789.54