Finding the Fourth Proportional to 10,137, 15,212.28 and 3,902.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,137 : 15,212.28 = 3,902.16 : x
2. Step 2: Convert to fraction form
   10,137/15,212.28 = 3,902.16/x
3. Step 3: Cross multiply
   10,137x = 15,212.28 × 3,902.16
4. Step 4: Simplify right side
   10,137x = 59,360,750.52
5. Step 5: Solve for x
   x = 59,360,750.52/10,137
6. Step 6: Final answer
   x = 5,855.85