Finding the Fourth Proportional to 10,143.54, 15,216.52 and 3,902.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,143.54 : 15,216.52 = 3,902.10 : x
2. Step 2: Convert to fraction form
   10,143.54/15,216.52 = 3,902.10/x
3. Step 3: Cross multiply
   10,143.54x = 15,216.52 × 3,902.10
4. Step 4: Simplify right side
   10,143.54x = 59,376,382.69
5. Step 5: Solve for x
   x = 59,376,382.69/10,143.54
6. Step 6: Final answer
   x = 5,853.62