Finding the Fourth Proportional to 10,145.32, 15,215.94 and 3,481.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,145.32 : 15,215.94 = 3,481.48 : x
2. Step 2: Convert to fraction form
   10,145.32/15,215.94 = 3,481.48/x
3. Step 3: Cross multiply
   10,145.32x = 15,215.94 × 3,481.48
4. Step 4: Simplify right side
   10,145.32x = 52,973,990.79
5. Step 5: Solve for x
   x = 52,973,990.79/10,145.32
6. Step 6: Final answer
   x = 5,221.52