Finding the Fourth Proportional to 9,123.47, 13,687.25 and 2,883.85

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.47 : 13,687.25 = 2,883.85 : x
2. Step 2: Convert to fraction form
   9,123.47/13,687.25 = 2,883.85/x
3. Step 3: Cross multiply
   9,123.47x = 13,687.25 × 2,883.85
4. Step 4: Simplify right side
   9,123.47x = 39,471,914.69
5. Step 5: Solve for x
   x = 39,471,914.69/9,123.47
6. Step 6: Final answer
   x = 4,326.41