Finding the Fourth Proportional to 10,123.65, 15,185.62 and 3,550.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.65 : 15,185.62 = 3,550.03 : x
2. Step 2: Convert to fraction form
   10,123.65/15,185.62 = 3,550.03/x
3. Step 3: Cross multiply
   10,123.65x = 15,185.62 × 3,550.03
4. Step 4: Simplify right side
   10,123.65x = 53,909,388.82
5. Step 5: Solve for x
   x = 53,909,388.82/10,123.65
6. Step 6: Final answer
   x = 5,325.09