Finding the Fourth Proportional to 10,440.21, 15,658.18 and 3,864.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.21 : 15,658.18 = 3,864.83 : x
2. Step 2: Convert to fraction form
   10,440.21/15,658.18 = 3,864.83/x
3. Step 3: Cross multiply
   10,440.21x = 15,658.18 × 3,864.83
4. Step 4: Simplify right side
   10,440.21x = 60,516,174.33
5. Step 5: Solve for x
   x = 60,516,174.33/10,440.21
6. Step 6: Final answer
   x = 5,796.45