Finding the Fourth Proportional to 10,113.72, 15,172.67 and 3,093.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,113.72 : 15,172.67 = 3,093.31 : x
2. Step 2: Convert to fraction form
   10,113.72/15,172.67 = 3,093.31/x
3. Step 3: Cross multiply
   10,113.72x = 15,172.67 × 3,093.31
4. Step 4: Simplify right side
   10,113.72x = 46,933,771.84
5. Step 5: Solve for x
   x = 46,933,771.84/10,113.72
6. Step 6: Final answer
   x = 4,640.60