Finding the Fourth Proportional to 10,123.29, 15,185.94 and 3,103.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.29 : 15,185.94 = 3,103.23 : x
2. Step 2: Convert to fraction form
   10,123.29/15,185.94 = 3,103.23/x
3. Step 3: Cross multiply
   10,123.29x = 15,185.94 × 3,103.23
4. Step 4: Simplify right side
   10,123.29x = 47,125,464.59
5. Step 5: Solve for x
   x = 47,125,464.59/10,123.29
6. Step 6: Final answer
   x = 4,655.15