Finding the Fourth Proportional to 10,185.93, 15,281.25 and 3,165.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.93 : 15,281.25 = 3,165.57 : x
2. Step 2: Convert to fraction form
   10,185.93/15,281.25 = 3,165.57/x
3. Step 3: Cross multiply
   10,185.93x = 15,281.25 × 3,165.57
4. Step 4: Simplify right side
   10,185.93x = 48,373,866.56
5. Step 5: Solve for x
   x = 48,373,866.56/10,185.93
6. Step 6: Final answer
   x = 4,749.09